Add the cache generator subcommand and docs for custom syntaxes

.gitignore

@@ -13,6 +13,8 @@ test_book/book/
 # Ignore Jetbrains specific files.
 .idea/
 
+src/theme/syntaxes.bin
+
 # Ignore Vim temporary and swap files.
 *.sw?
 *~

Cargo.toml

@@ -14,6 +14,10 @@ license = "MPL-2.0"
 readme = "README.md"
 repository = "https://github.com/rust-lang/mdBook"
 description = "Creates a book from markdown files"
+build = "build.rs"
+
+[build-dependencies]
+syntect = { version = "4.6.0", default-features = false, features = ["regex-onig", "parsing", "html", "dump-load", "yaml-load", "dump-create", "assets"] }
 
 [dependencies]
 anyhow = "1.0.28"
@@ -58,10 +62,11 @@ pretty_assertions = "1.2.1"
 walkdir = "2.0"
 
 [features]
-default = ["watch", "serve", "search"]
+default = ["watch", "serve", "search", "gen-syntax-cache"]
 watch = ["notify", "gitignore"]
 serve = ["futures-util", "tokio", "warp"]
 search = ["elasticlunr-rs", "ammonia"]
+gen-syntax-cache = ["syntect/dump-create"]
 
 [[bin]]
 doc = false

build.rs

@@ -0,0 +1,18 @@
+use std::env;
+use std::error::Error;
+use syntect::dumps::dump_to_file;
+use syntect::parsing::SyntaxSet;
+
+pub fn main() -> Result<(), Box<dyn Error>> {
+    let src_dir = format!(
+        "{}/src/theme/syntaxes/",
+        env::var("CARGO_MANIFEST_DIR").unwrap()
+    );
+    let dest = format!("{}/syntaxes.bin", env::var("OUT_DIR").unwrap());
+
+    let mut builder = SyntaxSet::load_defaults_newlines().into_builder();
+    builder.add_from_folder(&src_dir, true)?;
+    dump_to_file(&builder.build(), dest)?;
+
+    Ok(())
+}

guide/src/format/theme/syntax-highlighting.md

@@ -1,6 +1,6 @@
 # Syntax Highlighting
 
-mdBook uses [Highlight.js](https://highlightjs.org) with a custom theme
+mdBook uses [syntect](https://docs.rs/syntect/4.6.0/syntect/) with a custom theme
 for syntax highlighting.
 
 Automatic language detection has been turned off, so you will probably want to
@@ -17,65 +17,103 @@ fn main() {
 ## Supported languages
 
 These languages are supported by default, but you can add more by supplying
-your own `highlight.js` file:
+your own `.sublime-syntax` file:
 
-- apache
-- armasm
-- bash
-- c
-- coffeescript
-- cpp
-- csharp
-- css
-- d
-- diff
-- go
-- handlebars
-- haskell
-- http
-- ini
-- java
-- javascript
-- json
-- julia
-- kotlin
-- less
-- lua
-- makefile
-- markdown
-- nginx
-- objectivec
-- perl
-- php
-- plaintext
-- properties
-- python
-- r
-- ruby
-- rust
-- scala
-- scss
-- shell
-- sql
-- swift
-- typescript
-- x86asm
-- xml
-- yaml
+<!-- this list is generated by running `cargo run -- gen-syntax-cache --syntaxes-only` -->
+<!-- which outputs a list of names -->
+
+ Name | Extensions
+ -----|-----------
+ Plain Text | txt
+ ASP | asa
+ HTML (ASP) | asp
+ ActionScript | as
+ AppleScript | applescript script editor
+ Batch File | bat cmd
+ NAnt Build File | build
+ C# | cs csx
+ C++ | cpp cc cp cxx c++ C h hh hpp hxx h++ inl ipp
+ C | c h
+ CSS | css css.erb css.liquid
+ Clojure | clj
+ D | d di
+ Diff | diff patch
+ Erlang | erl hrl Emakefile emakefile
+ HTML (Erlang) | yaws
+ Go | go
+ Graphviz (DOT) | dot DOT gv
+ Groovy | groovy gvy gradle
+ HTML | html htm shtml xhtml inc tmpl tpl
+ Haskell | hs
+ Literate Haskell | lhs
+ Java Server Page (JSP) | jsp
+ Java | java bsh
+ JavaDoc | 
+ Java Properties | properties
+ JSON | json sublime-settings sublime-menu sublime-keymap sublime-mousemap sublime-theme sublime-build sublime-project sublime-completions sublime-commands sublime-macro sublime-color-scheme
+ JavaScript | js htc
+ Regular Expressions (Javascript) | 
+ BibTeX | bib
+ LaTeX Log | 
+ LaTeX | tex ltx
+ TeX | sty cls
+ Lisp | lisp cl clisp l mud el scm ss lsp fasl
+ Lua | lua
+ Make Output | 
+ Makefile | make GNUmakefile makefile Makefile OCamlMakefile mak mk
+ Markdown | md mdown markdown markdn
+ MultiMarkdown | 
+ MATLAB | matlab
+ OCaml | ml mli
+ OCamllex | mll
+ OCamlyacc | mly
+ camlp4 | 
+ Objective-C++ | mm M h
+ Objective-C | m h
+ PHP Source | 
+ PHP | php php3 php4 php5 php7 phps phpt phtml
+ Pascal | pas p dpr
+ Perl | pl pm pod t PL
+ Python | py py3 pyw pyi pyx pyx.in pxd pxd.in pxi pxi.in rpy cpy SConstruct Sconstruct sconstruct SConscript gyp gypi Snakefile script
+ Regular Expressions (Python) | 
+ R Console | 
+ R | R r s S Rprofile
+ Rd (R Documentation) | rd
+ HTML (Rails) | rails rhtml erb html.erb
+ JavaScript (Rails) | js.erb
+ Ruby Haml | haml sass
+ Ruby on Rails | rxml builder
+ SQL (Rails) | erbsql sql.erb
+ Regular Expression | re
+ reStructuredText | rst rest
+ Ruby | rb Appfile Appraisals Berksfile Brewfile capfile cgi Cheffile config.ru Deliverfile Fastfile fcgi Gemfile gemspec Guardfile irbrc jbuilder podspec prawn rabl rake Rakefile Rantfile rbx rjs ruby.rail Scanfile simplecov Snapfile thor Thorfile Vagrantfile
+ Cargo Build Results | 
+ Rust | rs
+ SQL | sql ddl dml
+ Scala | scala sbt
+ Bourne Again Shell (bash) | sh bash zsh fish .bash_aliases .bash_completions .bash_functions .bash_login .bash_logout .bash_profile .bash_variables .bashrc .profile .textmate_init
+ Shell-Unix-Generic | 
+ commands-builtin-shell-bash | 
+ HTML (Tcl) | adp
+ Tcl | tcl
+ Textile | textile
+ XML | xml xsd xslt tld dtml rss opml svg
+ YAML | yaml yml sublime-syntax
+ Handlebars | handlebars handlebars.html hbr hbrs hbs hdbs hjs mu mustache rac stache template tmpl]
 
 ## Custom theme
-Like the rest of the theme, the files used for syntax highlighting can be
-overridden with your own.
 
-- ***highlight.js*** normally you shouldn't have to overwrite this file, unless
-  you want to use a more recent version.
-- ***highlight.css*** theme used by highlight.js for syntax highlighting.
+Use the `gen-syntax-cache` command to compile sublime text syntax definitions and textmate theme files for mdbook.
 
-If you want to use another theme for `highlight.js` download it from their
-website, or make it yourself, rename it to `highlight.css` and put it in
-the `theme` folder of your book.
+    mdbook gen-syntax-cache --dest-dir=./theme ./syntax
 
-Now your theme will be used instead of the default theme.
+The `gen-syntax-cache` will process every `tmTheme` file, and generate a similarly-named file in `[dest-dir]/css/syntax`,
+and will also process every `sublime-syntax` file and add it to the `syntaxes.bin` cache. When building your book,
+mdBook will look in the ./theme directory for the `syntaxes.bin` cache and use it, and will also copy across the generated
+CSS files.
+
+mdBook includes, by default, the above standard syntax definitions when generating the `syntaxes.bin` cache. If you want to
+override all of the syntax definitions, pass the `--no-default-syntaxes` option.
 
 ## Hiding code lines
 

src/cmd/gen_syntax_cache.rs

@@ -0,0 +1,97 @@
+use clap::{App, ArgMatches, SubCommand};
+use mdbook::errors::Result;
+use std::env;
+use std::io::Cursor;
+use syntect::dumps::dump_to_file;
+use syntect::highlighting::ThemeSet;
+use syntect::html::css_for_theme_with_class_style;
+use syntect::html::ClassStyle;
+use syntect::parsing::{SyntaxSet, SyntaxSetBuilder};
+
+// Create clap subcommand arguments
+pub fn make_subcommand<'a, 'b>() -> App<'a, 'b> {
+    SubCommand::with_name("gen-syntax-cache")
+        .about("Generate syntaxes.bin and css/syntax")
+        .arg_from_usage(
+            "-d, --dest-dir=[dir] 'Output directory for the syntax cache{n}\
+             Relative paths are interpreted relative to the current working directory.{n}\
+             If omitted, mdBook uses `.`.
+             This command outputs files [dir]/syntaxes.bin and [dir]/css/syntax/*.css'",
+        )
+        .arg_from_usage("--syntaxes-only 'Only generate syntaxes.bin, not css/syntax/*.css.'")
+        .arg_from_usage(
+            "--no-default-syntaxes 'Don't include Sublime Text's default open source syntaxes{n}\
+             If included, only syntaxes from [dir] are used.'",
+        )
+        .arg_from_usage("--themes-only 'Only generate themes, not syntaxes.bin.'")
+        .arg_from_usage(
+            "--no-default-themes 'Don't include mdbook's default light, dark, and ayu themes{n}\
+             If included, only themes from [dir] are used.'",
+        )
+        .arg_from_usage(
+            "[dir] 'Root directory for the syntax sources{n}\
+             (Defaults to the Current Directory when omitted)'",
+        )
+}
+
+// Generate Syntax Cache command implementation
+pub fn execute(args: &ArgMatches) -> Result<()> {
+    let src_dir = env::current_dir()
+        .unwrap()
+        .join(&format!("{}/", args.value_of("dir").unwrap_or(".")));
+    let dest_dir = env::current_dir()
+        .unwrap()
+        .join(&format!("{}/", args.value_of("dest-dir").unwrap_or(".")));
+
+    if !args.is_present("themes-only") {
+        let mut builder = if args.is_present("no-default-syntaxes") {
+            SyntaxSetBuilder::new()
+        } else {
+            syntect::dumps::from_binary::<SyntaxSet>(mdbook::theme::SYNTAXES_BIN).into_builder()
+        };
+        builder.add_from_folder(&src_dir, true)?;
+        let set = builder.build();
+        for syntax in set.syntaxes() {
+            info!(
+                "supports syntax: {} [{}]",
+                syntax.name,
+                syntax.file_extensions.join(" ")
+            );
+        }
+        dump_to_file(&set, dest_dir.join("syntaxes.bin"))?;
+    }
+
+    if !args.is_present("syntaxes-only") {
+        let mut builder = ThemeSet::load_from_folder(&src_dir)?;
+        if !args.is_present("no-default-themes") {
+            if !builder.themes.contains_key("light") {
+                let light = ThemeSet::load_from_reader(&mut Cursor::new(
+                    mdbook::theme::SYNTAX_THEME_LIGHT,
+                ))?;
+                builder.themes.insert(String::from("light"), light);
+            }
+            if !builder.themes.contains_key("dark") {
+                let dark =
+                    ThemeSet::load_from_reader(&mut Cursor::new(mdbook::theme::SYNTAX_THEME_DARK))?;
+                builder.themes.insert(String::from("dark"), dark);
+            }
+            if !builder.themes.contains_key("ayu") {
+                let ayu =
+                    ThemeSet::load_from_reader(&mut Cursor::new(mdbook::theme::SYNTAX_THEME_AYU))?;
+                builder.themes.insert(String::from("ayu"), ayu);
+            }
+        }
+        for (name, theme) in builder.themes.iter() {
+            info!("supports theme: {}", name);
+            std::fs::write(
+                dest_dir.join(format!("css/syntax/{}.css", name)),
+                css_for_theme_with_class_style(
+                    theme,
+                    ClassStyle::SpacedPrefixed { prefix: "syn-" },
+                ),
+            )?;
+        }
+    }
+
+    Ok(())
+}

src/cmd/mod.rs

@@ -2,6 +2,8 @@
 
 pub mod build;
 pub mod clean;
+#[cfg(feature = "gen-syntax-cache")]
+pub mod gen_syntax_cache;
 pub mod init;
 #[cfg(feature = "serve")]
 pub mod serve;

src/main.rs

@@ -35,6 +35,9 @@ fn main() {
         Some(("serve", sub_matches)) => cmd::serve::execute(sub_matches),
         Some(("test", sub_matches)) => cmd::test::execute(sub_matches),
         Some(("completions", sub_matches)) => (|| {
+        #[cfg(feature = "gen_syntax_cache")]
+        ("gen-syntax-cache", Some(sub_matches)) => cmd::gen_syntax_cache::execute(sub_matches),
+        ("completions", Some(sub_matches)) => (|| {
             let shell: Shell = sub_matches
                 .value_of("shell")
                 .ok_or_else(|| anyhow!("Shell name missing."))?
@@ -93,6 +96,8 @@ fn create_clap_app() -> App<'static> {
     let app = app.subcommand(cmd::watch::make_subcommand());
     #[cfg(feature = "serve")]
     let app = app.subcommand(cmd::serve::make_subcommand());
+    #[cfg(feature = "gen-syntax-cache")]
+    let app = app.subcommand(cmd::gen_syntax_cache::make_subcommand());
 
     app
 }

src/theme/css/syntax/ayu.css

@@ -1,412 +1,151 @@
 /*
- * theme "ayu" generated by syntect
- * based off of Ayu by Dempfi
- * https://github.com/dempfi/ayu/blob/master/ayu-dark.sublime-color-scheme
+ * theme "Base16 Tomorrow Night" generated by syntect
  */
 
 .syn-code {
- color: #b3b1ad;
- background-color: #0a0e14;
+ color: #c5c8c6;
+ background-color: #1d1f21;
 }
 
-.syn-comment {
- color: #626a73;
-font-style: italic;
+.syn-variable.syn-parameter.syn-function {
+ color: #c5c8c6;
 }
-.syn-string {
- color: #c2d94c;
+.syn-comment, .syn-punctuation.syn-definition.syn-comment {
+ color: #969896;
 }
-.syn-constant.syn-other.syn-symbol {
- color: #c2d94c;
+.syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-variable, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-parameters, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-array {
+ color: #c5c8c6;
 }
-.syn-string.syn-regexp {
- color: #95e6cb;
-}
-.syn-constant.syn-character {
- color: #95e6cb;
-}
-.syn-constant.syn-other {
- color: #95e6cb;
-}
-.syn-constant.syn-numeric {
- color: #e6b450;
-}
-.syn-constant.syn-language {
- color: #e6b450;
-}
-.syn-meta.syn-constant {
- color: #ffee99;
-}
-.syn-entity.syn-name.syn-constant {
- color: #ffee99;
-}
-.syn-variable {
- color: #b3b1ad;
-}
-.syn-variable.syn-member {
- color: #f07178;
-}
-.syn-variable.syn-language {
- color: #39bae6;
-font-style: italic;
-}
-.syn-storage {
- color: #ff8f40;
-}
-.syn-storage.syn-type.syn-keyword {
- color: #ff8f40;
-}
-.syn-keyword {
- color: #ff8f40;
-}
-.syn-source.syn-java {
- color: #ff8f40;
-}
-.syn-meta.syn-class.syn-java {
- color: #ff8f40;
-}
-.syn-meta.syn-class.syn-identifier.syn-java {
- color: #ff8f40;
-}
-.syn-storage.syn-type.syn-java {
- color: #ff8f40;
+.syn-none {
+ color: #c5c8c6;
 }
 .syn-keyword.syn-operator {
- color: #f29668;
+ color: #c5c8c6;
 }
-.syn-punctuation.syn-separator {
- color: #b3b1ad;
+.syn-keyword {
+ color: #b294bb;
 }
-.syn-punctuation.syn-terminator {
- color: #b3b1ad;
+.syn-variable {
+ color: #cc6666;
 }
-.syn-punctuation.syn-section {
- color: #b3b1ad;
+.syn-entity.syn-name.syn-function, .syn-meta.syn-require, .syn-support.syn-function.syn-any-method {
+ color: #81a2be;
 }
-.syn-punctuation.syn-accessor {
- color: #f29668;
+.syn-entity.syn-name.syn-label {
+ color: #a3685a;
 }
-.syn-source.syn-java {
- color: #59c2ff;
+.syn-support.syn-class, .syn-entity.syn-name.syn-class, .syn-entity.syn-name.syn-type.syn-class {
+ color: #f0c674;
 }
-.syn-storage.syn-type {
- color: #59c2ff;
+.syn-meta.syn-class {
+ color: #ffffff;
 }
-.syn-source.syn-haskell {
- color: #59c2ff;
+.syn-keyword.syn-other.syn-special-method {
+ color: #81a2be;
 }
-.syn-storage.syn-type {
- color: #59c2ff;
-}
-.syn-source.syn-c {
- color: #59c2ff;
-}
-.syn-storage.syn-type {
- color: #59c2ff;
-}
-.syn-entity.syn-other.syn-inherited-class {
- color: #39bae6;
-}
-.syn-storage.syn-type.syn-function {
- color: #ff8f40;
-}
-.syn-source.syn-java {
- color: #39bae6;
-}
-.syn-storage.syn-type.syn-primitive {
- color: #39bae6;
-}
-.syn-entity.syn-name.syn-function {
- color: #ffb454;
-}
-.syn-variable.syn-parameter {
- color: #ffee99;
-}
-.syn-meta.syn-parameter {
- color: #ffee99;
-}
-.syn-variable.syn-function {
- color: #ffb454;
-}
-.syn-variable.syn-annotation {
- color: #ffb454;
-}
-.syn-meta.syn-function-call.syn-generic {
- color: #ffb454;
-}
-.syn-support.syn-function.syn-go {
- color: #ffb454;
+.syn-storage {
+ color: #b294bb;
 }
 .syn-support.syn-function {
- color: #f07178;
+ color: #8abeb7;
 }
-.syn-support.syn-macro {
- color: #f07178;
+.syn-string, .syn-constant.syn-other.syn-symbol, .syn-entity.syn-other.syn-inherited-class {
+ color: #b5bd68;
 }
-.syn-entity.syn-name.syn-import {
- color: #c2d94c;
+.syn-constant.syn-numeric {
+ color: #de935f;
 }
-.syn-entity.syn-name.syn-package {
- color: #c2d94c;
+.syn-none {
+ color: #de935f;
 }
-.syn-entity.syn-name {
- color: #59c2ff;
+.syn-none {
+ color: #de935f;
 }
-.syn-source.syn-js {
- color: #59c2ff;
-}
-.syn-meta.syn-function-call.syn-constructor {
- color: #59c2ff;
-}
-.syn-variable.syn-type {
- color: #59c2ff;
+.syn-constant {
+ color: #de935f;
 }
 .syn-entity.syn-name.syn-tag {
- color: #39bae6;
-}
-.syn-meta.syn-tag.syn-sgml {
- color: #39bae6;
-}
-.syn-punctuation.syn-definition.syn-tag.syn-end {
- color: #39bae6;
-}
-.syn-punctuation.syn-definition.syn-tag.syn-begin {
- color: #39bae6;
-}
-.syn-punctuation.syn-definition.syn-tag {
- color: #39bae6;
+ color: #cc6666;
 }
 .syn-entity.syn-other.syn-attribute-name {
- color: #ffb454;
+ color: #de935f;
 }
-.syn-support.syn-constant {
- color: #f29668;
+.syn-entity.syn-other.syn-attribute-name.syn-id, .syn-punctuation.syn-definition.syn-entity {
+ color: #81a2be;
+}
+.syn-meta.syn-selector {
+ color: #b294bb;
+}
+.syn-none {
+ color: #de935f;
+}
+.syn-markup.syn-heading .syn-punctuation.syn-definition.syn-heading, .syn-entity.syn-name.syn-section {
+ color: #81a2be;
+}
+.syn-keyword.syn-other.syn-unit {
+ color: #de935f;
+}
+.syn-markup.syn-bold, .syn-punctuation.syn-definition.syn-bold {
+ color: #f0c674;
+font-weight: bold;
+}
+.syn-markup.syn-italic, .syn-punctuation.syn-definition.syn-italic {
+ color: #b294bb;
 font-style: italic;
 }
-.syn-support.syn-type {
- color: #39bae6;
-}
-.syn-support.syn-class {
- color: #39bae6;
-}
-.syn-source.syn-go {
- color: #39bae6;
-}
-.syn-storage.syn-type {
- color: #39bae6;
-}
-.syn-meta.syn-decorator {
- color: #e6b673;
-}
-.syn-variable.syn-other {
- color: #e6b673;
-}
-.syn-meta.syn-decorator {
- color: #e6b673;
-}
-.syn-punctuation.syn-decorator {
- color: #e6b673;
-}
-.syn-storage.syn-type.syn-annotation {
- color: #e6b673;
-}
-.syn-variable.syn-annotation {
- color: #e6b673;
-}
-.syn-punctuation.syn-definition.syn-annotation {
- color: #e6b673;
-}
-.syn-invalid {
- color: #ff3333;
-}
-.syn-meta.syn-diff {
- color: #c594c5;
-}
-.syn-meta.syn-diff.syn-header {
- color: #c594c5;
-}
-.syn-source.syn-ruby {
- color: #ffb454;
-}
-.syn-variable.syn-other.syn-readwrite {
- color: #ffb454;
-}
-.syn-source.syn-css {
- color: #59c2ff;
-}
-.syn-entity.syn-name.syn-tag {
- color: #59c2ff;
-}
-.syn-source.syn-sass {
- color: #59c2ff;
-}
-.syn-entity.syn-name.syn-tag {
- color: #59c2ff;
-}
-.syn-source.syn-scss {
- color: #59c2ff;
-}
-.syn-entity.syn-name.syn-tag {
- color: #59c2ff;
-}
-.syn-source.syn-less {
- color: #59c2ff;
-}
-.syn-entity.syn-name.syn-tag {
- color: #59c2ff;
-}
-.syn-source.syn-stylus {
- color: #59c2ff;
-}
-.syn-entity.syn-name.syn-tag {
- color: #59c2ff;
-}
-.syn-source.syn-css {
- color: #626a73;
-}
-.syn-support.syn-type {
- color: #626a73;
-}
-.syn-source.syn-sass {
- color: #626a73;
-}
-.syn-support.syn-type {
- color: #626a73;
-}
-.syn-source.syn-scss {
- color: #626a73;
-}
-.syn-support.syn-type {
- color: #626a73;
-}
-.syn-source.syn-less {
- color: #626a73;
-}
-.syn-support.syn-type {
- color: #626a73;
-}
-.syn-source.syn-stylus {
- color: #626a73;
-}
-.syn-support.syn-type {
- color: #626a73;
-}
-.syn-support.syn-type.syn-property-name {
- color: #39bae6;
-}
-.syn-constant.syn-numeric.syn-line-number.syn-find-in-files {
- color: #626a73;
-}
-.syn-constant.syn-numeric.syn-line-number.syn-match {
- color: #ff8f40;
-}
-.syn-entity.syn-name.syn-filename.syn-find-in-files {
- color: #c2d94c;
-}
-.syn-message.syn-error {
- color: #ff3333;
-}
-.syn-markup.syn-heading {
- color: #c2d94c;
-font-weight: bold;
-}
-.syn-markup.syn-heading {
- color: #c2d94c;
-font-weight: bold;
-}
-.syn-entity.syn-name {
- color: #c2d94c;
-font-weight: bold;
-}
-.syn-markup.syn-underline.syn-link {
- color: #39bae6;
-}
-.syn-string.syn-other.syn-link {
- color: #39bae6;
-}
-.syn-markup.syn-italic {
- color: #f07178;
-font-style: italic;
-}
-.syn-markup.syn-bold {
- color: #f07178;
-font-weight: bold;
-}
-.syn-markup.syn-italic {
-font-weight: bold;
-font-style: italic;
-}
-.syn-markup.syn-bold {
-font-weight: bold;
-font-style: italic;
-}
-.syn-markup.syn-bold {
-font-weight: bold;
-font-style: italic;
-}
-.syn-markup.syn-italic {
-font-weight: bold;
-font-style: italic;
-}
-.syn-markup.syn-raw {
-    background: #191f26;
-}
 .syn-markup.syn-raw.syn-inline {
-    background: #191f26;
+ color: #b5bd68;
 }
-.syn-meta.syn-separator {
- color: #626a73;
- background-color: #b3b1ad;
-font-weight: bold;
+.syn-string.syn-other.syn-link, .syn-punctuation.syn-definition.syn-string.syn-end.syn-markdown, .syn-punctuation.syn-definition.syn-string.syn-begin.syn-markdown {
+ color: #cc6666;
 }
-.syn-markup.syn-quote {
- color: #95e6cb;
-font-style: italic;
+.syn-meta.syn-link {
+ color: #de935f;
 }
 .syn-markup.syn-list {
- color: #ffb454;
+ color: #cc6666;
 }
-.syn-punctuation.syn-definition.syn-list.syn-begin {
- color: #ffb454;
+.syn-markup.syn-quote {
+ color: #de935f;
+}
+.syn-meta.syn-separator {
+ color: #c5c8c6;
+ background-color: #373b41;
 }
 .syn-markup.syn-inserted {
- color: #91b362;
-}
-.syn-markup.syn-changed {
- color: #6994bf;
+ color: #b5bd68;
 }
 .syn-markup.syn-deleted {
- color: #d96c75;
+ color: #cc6666;
 }
-.syn-markup.syn-strike {
- color: #e6b673;
+.syn-markup.syn-changed {
+ color: #b294bb;
 }
-.syn-markup.syn-table {
- color: #39bae6;
- background-color: #b3b1ad;
+.syn-constant.syn-other.syn-color {
+ color: #8abeb7;
 }
-.syn-text.syn-html.syn-markdown {
- color: #f29668;
+.syn-string.syn-regexp {
+ color: #8abeb7;
 }
-.syn-markup.syn-inline.syn-raw {
- color: #f29668;
+.syn-constant.syn-character.syn-escape {
+ color: #8abeb7;
 }
-.syn-text.syn-html.syn-markdown {
- color: #626a73;
- background-color: #626a73;
+.syn-punctuation.syn-section.syn-embedded, .syn-variable.syn-interpolation {
+ color: #b294bb;
 }
-.syn-meta.syn-dummy.syn-line-break {
- color: #626a73;
- background-color: #626a73;
+.syn-invalid.syn-illegal {
+ color: #ffffff;
+ background-color: #cc6666;
 }
-.syn-punctuation.syn-definition.syn-markdown {
- color: #626a73;
- background-color: #b3b1ad;
+.syn-invalid.syn-broken {
+ color: #1d1f21;
+ background-color: #de935f;
 }
-.scode {
- display: block;
- overflow-x: auto;
- background: #191f26;
- color: #e6e1cf;
- padding: 0.5em;
+.syn-invalid.syn-deprecated {
+ color: #ffffff;
+ background-color: #a3685a;
+}
+.syn-invalid.syn-unimplemented {
+ color: #ffffff;
+ background-color: #969896;
 }

src/theme/css/syntax/dark.css

@@ -1,6 +1,5 @@
+/*
  * theme "Base16 Tomorrow Night" generated by syntect
-* based off of Base16 Tomorrow Night by Chris Kempson
-* https://github.com/chriskempson/base16-textmate/blob/master/Themes/base16-tomorrow-night.tmTheme
  */
 
 .syn-code {
@@ -11,28 +10,10 @@ background-color: #1d1f21;
 .syn-variable.syn-parameter.syn-function {
  color: #c5c8c6;
 }
-.syn-comment {
+.syn-comment, .syn-punctuation.syn-definition.syn-comment {
  color: #969896;
 }
-.syn-punctuation.syn-definition.syn-comment {
-color: #969896;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #c5c8c6;
-}
-.syn-punctuation.syn-definition.syn-variable {
-color: #c5c8c6;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #c5c8c6;
-}
-.syn-punctuation.syn-definition.syn-parameters {
-color: #c5c8c6;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #c5c8c6;
-}
-.syn-punctuation.syn-definition.syn-array {
+.syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-variable, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-parameters, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-array {
  color: #c5c8c6;
 }
 .syn-none {
@@ -47,25 +28,13 @@ color: #b294bb;
 .syn-variable {
  color: #cc6666;
 }
-.syn-entity.syn-name.syn-function {
-color: #81a2be;
-}
-.syn-meta.syn-require {
-color: #81a2be;
-}
-.syn-support.syn-function.syn-any-method {
+.syn-entity.syn-name.syn-function, .syn-meta.syn-require, .syn-support.syn-function.syn-any-method {
  color: #81a2be;
 }
 .syn-entity.syn-name.syn-label {
  color: #a3685a;
 }
-.syn-support.syn-class {
-color: #f0c674;
-}
-.syn-entity.syn-name.syn-class {
-color: #f0c674;
-}
-.syn-entity.syn-name.syn-type.syn-class {
+.syn-support.syn-class, .syn-entity.syn-name.syn-class, .syn-entity.syn-name.syn-type.syn-class {
  color: #f0c674;
 }
 .syn-meta.syn-class {
@@ -80,13 +49,7 @@ color: #b294bb;
 .syn-support.syn-function {
  color: #8abeb7;
 }
-.syn-string {
-color: #b5bd68;
-}
-.syn-constant.syn-other.syn-symbol {
-color: #b5bd68;
-}
-.syn-entity.syn-other.syn-inherited-class {
+.syn-string, .syn-constant.syn-other.syn-symbol, .syn-entity.syn-other.syn-inherited-class {
  color: #b5bd68;
 }
 .syn-constant.syn-numeric {
@@ -107,10 +70,7 @@ color: #cc6666;
 .syn-entity.syn-other.syn-attribute-name {
  color: #de935f;
 }
-.syn-entity.syn-other.syn-attribute-name.syn-id {
-color: #81a2be;
-}
-.syn-punctuation.syn-definition.syn-entity {
+.syn-entity.syn-other.syn-attribute-name.syn-id, .syn-punctuation.syn-definition.syn-entity {
  color: #81a2be;
 }
 .syn-meta.syn-selector {
@@ -119,44 +79,24 @@ color: #b294bb;
 .syn-none {
  color: #de935f;
 }
-.syn-markup.syn-heading {
-color: #81a2be;
-}
-.syn-punctuation.syn-definition.syn-heading {
-color: #81a2be;
-}
-.syn-entity.syn-name.syn-section {
+.syn-markup.syn-heading .syn-punctuation.syn-definition.syn-heading, .syn-entity.syn-name.syn-section {
  color: #81a2be;
 }
 .syn-keyword.syn-other.syn-unit {
  color: #de935f;
 }
-.syn-markup.syn-bold {
+.syn-markup.syn-bold, .syn-punctuation.syn-definition.syn-bold {
  color: #f0c674;
 font-weight: bold;
 }
-.syn-punctuation.syn-definition.syn-bold {
-color: #f0c674;
-font-weight: bold;
-}
-.syn-markup.syn-italic {
-color: #b294bb;
-font-style: italic;
-}
-.syn-punctuation.syn-definition.syn-italic {
+.syn-markup.syn-italic, .syn-punctuation.syn-definition.syn-italic {
  color: #b294bb;
 font-style: italic;
 }
 .syn-markup.syn-raw.syn-inline {
  color: #b5bd68;
 }
-.syn-string.syn-other.syn-link {
-color: #cc6666;
-}
-.syn-punctuation.syn-definition.syn-string.syn-end.syn-markdown {
-color: #cc6666;
-}
-.syn-punctuation.syn-definition.syn-string.syn-begin.syn-markdown {
+.syn-string.syn-other.syn-link, .syn-punctuation.syn-definition.syn-string.syn-end.syn-markdown, .syn-punctuation.syn-definition.syn-string.syn-begin.syn-markdown {
  color: #cc6666;
 }
 .syn-meta.syn-link {
@@ -190,10 +130,7 @@ color: #8abeb7;
 .syn-constant.syn-character.syn-escape {
  color: #8abeb7;
 }
-.syn-punctuation.syn-section.syn-embedded {
-color: #b294bb;
-}
-.syn-variable.syn-interpolation {
+.syn-punctuation.syn-section.syn-embedded, .syn-variable.syn-interpolation {
  color: #b294bb;
 }
 .syn-invalid.syn-illegal {
@@ -212,11 +149,3 @@ background-color: #a3685a;
  color: #ffffff;
  background-color: #969896;
 }
-.scode {
-display: block;
-overflow-x: auto;
-background: #1d1f21;
-color: #c5c8c6;
-padding: 0.5em;
--webkit-text-size-adjust: none;
-}

src/theme/css/syntax/light.css

@@ -1,9 +1,5 @@
 /*
  * theme "Base16 Atelier Dune Light" generated by syntect
-* Based off of the "Base16 Atelier Dune Light" theme by Bram de Haan
-* (http://atelierbram.github.io/syntax-highlighting/atelier-schemes/dune)
-* Original Base16 color scheme by Chris Kempson
-* (https://github.com/chriskempson/base16)
  */
 
 .syn-code {
@@ -14,28 +10,10 @@ background-color: #fefbec;
 .syn-variable.syn-parameter.syn-function {
  color: #6e6b5e;
 }
-.syn-comment {
+.syn-comment, .syn-punctuation.syn-definition.syn-comment {
  color: #999580;
 }
-.syn-punctuation.syn-definition.syn-comment {
-color: #999580;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #6e6b5e;
-}
-.syn-punctuation.syn-definition.syn-variable {
-color: #6e6b5e;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #6e6b5e;
-}
-.syn-punctuation.syn-definition.syn-parameters {
-color: #6e6b5e;
-}
-.syn-punctuation.syn-definition.syn-string {
-color: #6e6b5e;
-}
-.syn-punctuation.syn-definition.syn-array {
+.syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-variable, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-parameters, .syn-punctuation.syn-definition.syn-string, .syn-punctuation.syn-definition.syn-array {
  color: #6e6b5e;
 }
 .syn-none {
@@ -50,22 +28,10 @@ color: #b854d4;
 .syn-variable {
  color: #d73737;
 }
-.syn-entity.syn-name.syn-function {
+.syn-entity.syn-name.syn-function, .syn-meta.syn-require, .syn-support.syn-function.syn-any-method {
  color: #6684e1;
 }
-.syn-meta.syn-require {
-color: #6684e1;
-}
-.syn-support.syn-function.syn-any-method {
-color: #6684e1;
-}
-.syn-support.syn-class {
-color: #b65611;
-}
-.syn-entity.syn-name.syn-class {
-color: #b65611;
-}
-.syn-entity.syn-name.syn-type.syn-class {
+.syn-support.syn-class, .syn-entity.syn-name.syn-class, .syn-entity.syn-name.syn-type.syn-class {
  color: #b65611;
 }
 .syn-meta.syn-class {
@@ -80,13 +46,7 @@ color: #b854d4;
 .syn-support.syn-function {
  color: #1fad83;
 }
-.syn-string {
-color: #60ac39;
-}
-.syn-constant.syn-other.syn-symbol {
-color: #60ac39;
-}
-.syn-entity.syn-other.syn-inherited-class {
+.syn-string, .syn-constant.syn-other.syn-symbol, .syn-entity.syn-other.syn-inherited-class {
  color: #60ac39;
 }
 .syn-constant.syn-numeric {
@@ -107,10 +67,7 @@ color: #d73737;
 .syn-entity.syn-other.syn-attribute-name {
  color: #b65611;
 }
-.syn-entity.syn-other.syn-attribute-name.syn-id {
-color: #6684e1;
-}
-.syn-punctuation.syn-definition.syn-entity {
+.syn-entity.syn-other.syn-attribute-name.syn-id, .syn-punctuation.syn-definition.syn-entity {
  color: #6684e1;
 }
 .syn-meta.syn-selector {
@@ -119,31 +76,17 @@ color: #b854d4;
 .syn-none {
  color: #b65611;
 }
-.syn-markup.syn-heading {
-color: #6684e1;
-}
-.syn-punctuation.syn-definition.syn-heading {
-color: #6684e1;
-}
-.syn-entity.syn-name.syn-section {
+.syn-markup.syn-heading .syn-punctuation.syn-definition.syn-heading, .syn-entity.syn-name.syn-section {
  color: #6684e1;
 }
 .syn-keyword.syn-other.syn-unit {
  color: #b65611;
 }
-.syn-markup.syn-bold {
+.syn-markup.syn-bold, .syn-punctuation.syn-definition.syn-bold {
  color: #b65611;
 font-weight: bold;
 }
-.syn-punctuation.syn-definition.syn-bold {
-color: #b65611;
-font-weight: bold;
-}
-.syn-markup.syn-italic {
-color: #b854d4;
-font-style: italic;
-}
-.syn-punctuation.syn-definition.syn-italic {
+.syn-markup.syn-italic, .syn-punctuation.syn-definition.syn-italic {
  color: #b854d4;
 font-style: italic;
 }
@@ -184,10 +127,7 @@ color: #1fad83;
 .syn-constant.syn-character.syn-escape {
  color: #1fad83;
 }
-.syn-punctuation.syn-section.syn-embedded {
-color: #d43552;
-}
-.syn-variable.syn-interpolation {
+.syn-punctuation.syn-section.syn-embedded, .syn-variable.syn-interpolation {
  color: #d43552;
 }
 .syn-invalid.syn-illegal {
@@ -206,10 +146,3 @@ background-color: #d43552;
  color: #20201d;
  background-color: #a6a28c;
 }
-.scode {
-display: block;
-overflow-x: auto;
-background: #f6f7f6;
-color: #000;
-padding: 0.5em;
-}

src/theme/mod.rs

@@ -36,7 +36,10 @@ pub static FONT_AWESOME_WOFF: &[u8] = include_bytes!("FontAwesome/fonts/fontawes
 pub static FONT_AWESOME_WOFF2: &[u8] =
     include_bytes!("FontAwesome/fonts/fontawesome-webfont.woff2");
 pub static FONT_AWESOME_OTF: &[u8] = include_bytes!("FontAwesome/fonts/FontAwesome.otf");
-pub static SYNTAXES_BIN: &[u8] = include_bytes!("syntaxes.bin");
+pub static SYNTAXES_BIN: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/syntaxes.bin"));
+pub static SYNTAX_THEME_LIGHT: &[u8] = include_bytes!("syntax-themes/light.tmTheme");
+pub static SYNTAX_THEME_DARK: &[u8] = include_bytes!("syntax-themes/dark.tmTheme");
+pub static SYNTAX_THEME_AYU: &[u8] = include_bytes!("syntax-themes/ayu.tmTheme");
 
 /// The `Theme` struct should be used instead of the static variables because
 /// the `new()` method will look if the user has a theme directory in their

src/theme/syntax-themes/README.md

@@ -0,0 +1,17 @@
+dark.tmTheme is from https://github.com/chriskempson/base16-textmate/blob/master/Themes/base16-tomorrow-night.tmTheme
+
+ayu.tmTheme is a tweaked version of the dark theme
+
+light.tmTheme is from https://github.com/atelierbram/syntax-highlighting/blob/master/docs/archive/atelier-schemes/output/textmate/base16-atelierdune.light.tmTheme which is described at https://atelierbram.github.io/syntax-highlighting/atelier-schemes/dune/
+
+This folder is not copied over to the book directory when using `mdbook init`, nor is it indexed at runtime. To modify the themes, modify the tmTheme file, then run:
+
+```shell
+$ cargo run -- gen-syntax-cache --themes-only --no-default-themes --dest-dir=..
+```
+
+The `--no-default-themes` flag is added because the whole point is to *not* use the ones embedded in the mdbook binary.
+
+Now, you may rebuild the `mdbook` binary and the new themes should be included.
+
+This only needs to be run when the themes in this folder are updated.

src/theme/syntax-themes/ayu.tmTheme

@@ -0,0 +1,560 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>author</key>
+	<string>Template: Chris Kempson, Scheme: Chris Kempson (http://chriskempson.com)</string>
+	<key>name</key>
+	<string>Base16 Tomorrow Night</string>
+	<key>semanticClass</key>
+	<string>theme.base16.tomorrow-night</string>
+	<key>colorSpaceName</key>
+	<string>sRGB</string>
+	<key>gutterSettings</key>
+	<dict>
+		<key>background</key>
+		<string>#282a2e</string>
+		<key>divider</key>
+		<string>#282a2e</string>
+		<key>foreground</key>
+		<string>#969896</string>
+		<key>selectionBackground</key>
+		<string>#373b41</string>
+		<key>selectionForeground</key>
+		<string>#b4b7b4</string>
+	</dict>
+	<key>settings</key>
+	<array>
+		<dict>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#1d1f21</string>
+				<key>caret</key>
+				<string>#c5c8c6</string>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+				<key>invisibles</key>
+				<string>#969896</string>
+				<key>lineHighlight</key>
+				<string>#96989655</string>
+				<key>selection</key>
+				<string>#373b41</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Text</string>
+			<key>scope</key>
+			<string>variable.parameter.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Comments</string>
+			<key>scope</key>
+			<string>comment, punctuation.definition.comment</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#969896</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Punctuation</string>
+			<key>scope</key>
+			<string>punctuation.definition.string, punctuation.definition.variable, punctuation.definition.string, punctuation.definition.parameters, punctuation.definition.string, punctuation.definition.array</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Delimiters</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Operators</string>
+			<key>scope</key>
+			<string>keyword.operator</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Keywords</string>
+			<key>scope</key>
+			<string>keyword</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Variables</string>
+			<key>scope</key>
+			<string>variable</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Functions</string>
+			<key>scope</key>
+			<string>entity.name.function, meta.require, support.function.any-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Labels</string>
+			<key>scope</key>
+			<string>entity.name.label</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#a3685a</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>support.class, entity.name.class, entity.name.type.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#f0c674</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>meta.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Methods</string>
+			<key>scope</key>
+			<string>keyword.other.special-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Storage</string>
+			<key>scope</key>
+			<string>storage</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Support</string>
+			<key>scope</key>
+			<string>support.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Strings, Inherited Class</string>
+			<key>scope</key>
+			<string>string, constant.other.symbol, entity.other.inherited-class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Integers</string>
+			<key>scope</key>
+			<string>constant.numeric</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Floats</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Boolean</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Constants</string>
+			<key>scope</key>
+			<string>constant</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Tags</string>
+			<key>scope</key>
+			<string>entity.name.tag</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attributes</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attribute IDs</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name.id, punctuation.definition.entity</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Selector</string>
+			<key>scope</key>
+			<string>meta.selector</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Values</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Headings</string>
+			<key>scope</key>
+			<string>markup.heading punctuation.definition.heading, entity.name.section</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string></string>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Units</string>
+			<key>scope</key>
+			<string>keyword.other.unit</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Bold</string>
+			<key>scope</key>
+			<string>markup.bold, punctuation.definition.bold</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>bold</string>
+				<key>foreground</key>
+				<string>#f0c674</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Italic</string>
+			<key>scope</key>
+			<string>markup.italic, punctuation.definition.italic</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>italic</string>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Code</string>
+			<key>scope</key>
+			<string>markup.raw.inline</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Text</string>
+			<key>scope</key>
+      <string>string.other.link, punctuation.definition.string.end.markdown, punctuation.definition.string.begin.markdown</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Url</string>
+			<key>scope</key>
+			<string>meta.link</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Lists</string>
+			<key>scope</key>
+			<string>markup.list</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Quotes</string>
+			<key>scope</key>
+			<string>markup.quote</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Separator</string>
+			<key>scope</key>
+			<string>meta.separator</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#373b41</string>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Inserted</string>
+			<key>scope</key>
+			<string>markup.inserted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deleted</string>
+			<key>scope</key>
+			<string>markup.deleted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Changed</string>
+			<key>scope</key>
+			<string>markup.changed</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Colors</string>
+			<key>scope</key>
+			<string>constant.other.color</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Regular Expressions</string>
+			<key>scope</key>
+			<string>string.regexp</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Escape Characters</string>
+			<key>scope</key>
+			<string>constant.character.escape</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Embedded</string>
+			<key>scope</key>
+			<string>punctuation.section.embedded, variable.interpolation</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Illegal</string>
+			<key>scope</key>
+			<string>invalid.illegal</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#cc6666</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Broken</string>
+			<key>scope</key>
+			<string>invalid.broken</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#de935f</string>
+				<key>foreground</key>
+				<string>#1d1f21</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deprecated</string>
+			<key>scope</key>
+			<string>invalid.deprecated</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#a3685a</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Unimplemented</string>
+			<key>scope</key>
+			<string>invalid.unimplemented</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#969896</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+	</array>
+	<key>uuid</key>
+	<string>uuid</string>
+</dict>
+</plist>

src/theme/syntax-themes/dark.tmTheme

@@ -0,0 +1,560 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>author</key>
+	<string>Template: Chris Kempson, Scheme: Chris Kempson (http://chriskempson.com)</string>
+	<key>name</key>
+	<string>Base16 Tomorrow Night</string>
+	<key>semanticClass</key>
+	<string>theme.base16.tomorrow-night</string>
+	<key>colorSpaceName</key>
+	<string>sRGB</string>
+	<key>gutterSettings</key>
+	<dict>
+		<key>background</key>
+		<string>#282a2e</string>
+		<key>divider</key>
+		<string>#282a2e</string>
+		<key>foreground</key>
+		<string>#969896</string>
+		<key>selectionBackground</key>
+		<string>#373b41</string>
+		<key>selectionForeground</key>
+		<string>#b4b7b4</string>
+	</dict>
+	<key>settings</key>
+	<array>
+		<dict>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#1d1f21</string>
+				<key>caret</key>
+				<string>#c5c8c6</string>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+				<key>invisibles</key>
+				<string>#969896</string>
+				<key>lineHighlight</key>
+				<string>#96989655</string>
+				<key>selection</key>
+				<string>#373b41</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Text</string>
+			<key>scope</key>
+			<string>variable.parameter.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Comments</string>
+			<key>scope</key>
+			<string>comment, punctuation.definition.comment</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#969896</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Punctuation</string>
+			<key>scope</key>
+			<string>punctuation.definition.string, punctuation.definition.variable, punctuation.definition.string, punctuation.definition.parameters, punctuation.definition.string, punctuation.definition.array</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Delimiters</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Operators</string>
+			<key>scope</key>
+			<string>keyword.operator</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Keywords</string>
+			<key>scope</key>
+			<string>keyword</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Variables</string>
+			<key>scope</key>
+			<string>variable</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Functions</string>
+			<key>scope</key>
+			<string>entity.name.function, meta.require, support.function.any-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Labels</string>
+			<key>scope</key>
+			<string>entity.name.label</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#a3685a</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>support.class, entity.name.class, entity.name.type.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#f0c674</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>meta.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Methods</string>
+			<key>scope</key>
+			<string>keyword.other.special-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Storage</string>
+			<key>scope</key>
+			<string>storage</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Support</string>
+			<key>scope</key>
+			<string>support.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Strings, Inherited Class</string>
+			<key>scope</key>
+			<string>string, constant.other.symbol, entity.other.inherited-class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Integers</string>
+			<key>scope</key>
+			<string>constant.numeric</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Floats</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Boolean</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Constants</string>
+			<key>scope</key>
+			<string>constant</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Tags</string>
+			<key>scope</key>
+			<string>entity.name.tag</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attributes</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attribute IDs</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name.id, punctuation.definition.entity</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Selector</string>
+			<key>scope</key>
+			<string>meta.selector</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Values</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Headings</string>
+			<key>scope</key>
+			<string>markup.heading punctuation.definition.heading, entity.name.section</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string></string>
+				<key>foreground</key>
+				<string>#81a2be</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Units</string>
+			<key>scope</key>
+			<string>keyword.other.unit</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Bold</string>
+			<key>scope</key>
+			<string>markup.bold, punctuation.definition.bold</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>bold</string>
+				<key>foreground</key>
+				<string>#f0c674</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Italic</string>
+			<key>scope</key>
+			<string>markup.italic, punctuation.definition.italic</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>italic</string>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Code</string>
+			<key>scope</key>
+			<string>markup.raw.inline</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Text</string>
+			<key>scope</key>
+      <string>string.other.link, punctuation.definition.string.end.markdown, punctuation.definition.string.begin.markdown</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Url</string>
+			<key>scope</key>
+			<string>meta.link</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Lists</string>
+			<key>scope</key>
+			<string>markup.list</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Quotes</string>
+			<key>scope</key>
+			<string>markup.quote</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#de935f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Separator</string>
+			<key>scope</key>
+			<string>meta.separator</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#373b41</string>
+				<key>foreground</key>
+				<string>#c5c8c6</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Inserted</string>
+			<key>scope</key>
+			<string>markup.inserted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b5bd68</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deleted</string>
+			<key>scope</key>
+			<string>markup.deleted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#cc6666</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Changed</string>
+			<key>scope</key>
+			<string>markup.changed</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Colors</string>
+			<key>scope</key>
+			<string>constant.other.color</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Regular Expressions</string>
+			<key>scope</key>
+			<string>string.regexp</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Escape Characters</string>
+			<key>scope</key>
+			<string>constant.character.escape</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#8abeb7</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Embedded</string>
+			<key>scope</key>
+			<string>punctuation.section.embedded, variable.interpolation</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b294bb</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Illegal</string>
+			<key>scope</key>
+			<string>invalid.illegal</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#cc6666</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Broken</string>
+			<key>scope</key>
+			<string>invalid.broken</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#de935f</string>
+				<key>foreground</key>
+				<string>#1d1f21</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deprecated</string>
+			<key>scope</key>
+			<string>invalid.deprecated</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#a3685a</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Unimplemented</string>
+			<key>scope</key>
+			<string>invalid.unimplemented</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#969896</string>
+				<key>foreground</key>
+				<string>#ffffff</string>
+			</dict>
+		</dict>
+	</array>
+	<key>uuid</key>
+	<string>uuid</string>
+</dict>
+</plist>

src/theme/syntax-themes/light.tmTheme

@@ -0,0 +1,549 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>author</key>
+	<string>Bram de Haan (http://atelierbram.github.io/syntax-highlighting/atelier-schemes/dune)</string>
+	<key>name</key>
+	<string>Base16 Atelier Dune Light</string>
+	<key>semanticClass</key>
+	<string>base16.atelierdune.light</string>
+	<key>colorSpaceName</key>
+	<string>sRGB</string>
+	<key>gutterSettings</key>
+	<dict>
+		<key>background</key>
+		<string>#fefbec</string>
+		<key>divider</key>
+		<string>#fefbec</string>
+		<key>foreground</key>
+		<string>#6e6b5e</string>
+		<key>selectionBackground</key>
+		<string>#fefbec</string>
+		<key>selectionForeground</key>
+		<string>#a6a28c</string>
+	</dict>
+	<key>settings</key>
+	<array>
+		<dict>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#fefbec</string>
+				<key>caret</key>
+				<string>#6e6b5e</string>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+				<key>invisibles</key>
+				<string>#e8e4cf</string>
+				<key>lineHighlight</key>
+				<string>#99958055</string>
+				<key>selection</key>
+				<string>#e8e4cf</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Text</string>
+			<key>scope</key>
+			<string>variable.parameter.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Comments</string>
+			<key>scope</key>
+			<string>comment, punctuation.definition.comment</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#999580</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Punctuation</string>
+			<key>scope</key>
+			<string>punctuation.definition.string, punctuation.definition.variable, punctuation.definition.string, punctuation.definition.parameters, punctuation.definition.string, punctuation.definition.array</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Delimiters</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Operators</string>
+			<key>scope</key>
+			<string>keyword.operator</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Keywords</string>
+			<key>scope</key>
+			<string>keyword</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b854d4</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Variables</string>
+			<key>scope</key>
+			<string>variable</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d73737</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Functions</string>
+			<key>scope</key>
+			<string>entity.name.function, meta.require, support.function.any-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6684e1</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>support.class, entity.name.class, entity.name.type.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Classes</string>
+			<key>scope</key>
+			<string>meta.class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#292824</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Methods</string>
+			<key>scope</key>
+			<string>keyword.other.special-method</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6684e1</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Storage</string>
+			<key>scope</key>
+			<string>storage</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b854d4</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Support</string>
+			<key>scope</key>
+			<string>support.function</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#1fad83</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Strings, Inherited Class</string>
+			<key>scope</key>
+			<string>string, constant.other.symbol, entity.other.inherited-class</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#60ac39</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Integers</string>
+			<key>scope</key>
+			<string>constant.numeric</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Floats</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Boolean</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Constants</string>
+			<key>scope</key>
+			<string>constant</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Tags</string>
+			<key>scope</key>
+			<string>entity.name.tag</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d73737</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attributes</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Attribute IDs</string>
+			<key>scope</key>
+			<string>entity.other.attribute-name.id, punctuation.definition.entity</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#6684e1</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Selector</string>
+			<key>scope</key>
+			<string>meta.selector</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b854d4</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Values</string>
+			<key>scope</key>
+			<string>none</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Headings</string>
+			<key>scope</key>
+			<string>markup.heading punctuation.definition.heading, entity.name.section</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string></string>
+				<key>foreground</key>
+				<string>#6684e1</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Units</string>
+			<key>scope</key>
+			<string>keyword.other.unit</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Bold</string>
+			<key>scope</key>
+			<string>markup.bold, punctuation.definition.bold</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>bold</string>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Italic</string>
+			<key>scope</key>
+			<string>markup.italic, punctuation.definition.italic</string>
+			<key>settings</key>
+			<dict>
+				<key>fontStyle</key>
+				<string>italic</string>
+				<key>foreground</key>
+				<string>#b854d4</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Code</string>
+			<key>scope</key>
+			<string>markup.raw.inline</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#60ac39</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Text</string>
+			<key>scope</key>
+			<string>string.other.link</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d73737</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Link Url</string>
+			<key>scope</key>
+			<string>meta.link</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Lists</string>
+			<key>scope</key>
+			<string>markup.list</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d73737</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Quotes</string>
+			<key>scope</key>
+			<string>markup.quote</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b65611</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Separator</string>
+			<key>scope</key>
+			<string>meta.separator</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#e8e4cf</string>
+				<key>foreground</key>
+				<string>#6e6b5e</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Inserted</string>
+			<key>scope</key>
+			<string>markup.inserted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#60ac39</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deleted</string>
+			<key>scope</key>
+			<string>markup.deleted</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d73737</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Changed</string>
+			<key>scope</key>
+			<string>markup.changed</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#b854d4</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Colors</string>
+			<key>scope</key>
+			<string>constant.other.color</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#1fad83</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Regular Expressions</string>
+			<key>scope</key>
+			<string>string.regexp</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#1fad83</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Escape Characters</string>
+			<key>scope</key>
+			<string>constant.character.escape</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#1fad83</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Embedded</string>
+			<key>scope</key>
+			<string>punctuation.section.embedded, variable.interpolation</string>
+			<key>settings</key>
+			<dict>
+				<key>foreground</key>
+				<string>#d43552</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Illegal</string>
+			<key>scope</key>
+			<string>invalid.illegal</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#d73737</string>
+				<key>foreground</key>
+				<string>#fefbec</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Broken</string>
+			<key>scope</key>
+			<string>invalid.broken</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#b65611</string>
+				<key>foreground</key>
+				<string>#20201d</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Deprecated</string>
+			<key>scope</key>
+			<string>invalid.deprecated</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#d43552</string>
+				<key>foreground</key>
+				<string>#fefbec</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>Unimplemented</string>
+			<key>scope</key>
+			<string>invalid.unimplemented</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#a6a28c</string>
+				<key>foreground</key>
+				<string>#20201d</string>
+			</dict>
+		</dict>
+	</array>
+	<key>uuid</key>
+	<string>f2aa1936-a9d9-40c6-a1db-c64d058b81dd</string>
+</dict>
+</plist>

src/theme/syntaxes/README.md

@@ -1,16 +1,5 @@
 # Note
 
-This folder is not copied over to the book directory when using `mdbook init`, nor is it indexed at runtime. To add new syntaxes, first add a `.sublime-syntax` file in this directory, then run (from inside this directory):
-```shell
-$ ./gen-syntaxcache.sh
-```
-Make sure you have [`bat`](https://github.com/sharkdp/bat) installed, otherwise this won't work.
+This folder is not copied over to the book directory when using `mdbook init`, nor is it indexed at runtime. All of the files in this folder are scraped by build.rs.
 
-Don't worry if bat says:
-```
-No themes were found in './themes', using the default set
-```
-
-Now, you may rebuild the `mdBook` binary and the new syntaxes should be included.
-
-This only needs to be run when the syntaxes in this folder are updated.
+To make build.rs run again without running `cargo clean`, touch the run `touch build.rs`.

src/theme/syntaxes/gen-syntaxcache.sh

@@ -1,6 +0,0 @@
-#!/bin/env bash
-set -Eeuxo pipefail
-
-bat cache --build --source=".." --target=".."
-rm -f ../themes.bin
-rm -f ../metadata.yaml

src/utils/mod.rs

@@ -341,6 +341,9 @@ impl<'a> SyntaxHighlighter<'a> {
                                 r#"<pre class="playground"><code class="language-{}">"#,
                                 classes.join(" ")
                             )));
+                        } else {
+                            self.is_editable = false;
+                            self.is_playground = false;
                         }
                     }
                 } else {
@@ -373,6 +376,7 @@ impl<'a> SyntaxHighlighter<'a> {
                 );
                 let needs_wrapped = self.is_rust
                     && !(self.playground_config.editable && self.is_editable)
+                    && self.is_playground
                     && !code.contains("fn main")
                     && !code.contains("quick_main!");
                 if needs_wrapped {
@@ -704,15 +708,15 @@ more text with spaces
               ("```rust\nfn main() {}\n```",
                "<pre class=\"playground\"><code class=\"language-rust\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-storage syn-type syn-function syn-rust\">fn</span> </span><span class=\"syn-entity syn-name syn-function syn-rust\">main</span></span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-parameters syn-rust\"><span class=\"syn-punctuation syn-section syn-parameters syn-begin syn-rust\">(</span></span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-parameters syn-rust\"><span class=\"syn-punctuation syn-section syn-parameters syn-end syn-rust\">)</span></span></span></span><span class=\"syn-meta syn-function syn-rust\"> </span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-punctuation syn-section syn-block syn-begin syn-rust\">{</span></span><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-punctuation syn-section syn-block syn-end syn-rust\">}</span></span></span>\n</span></code></pre>"),
               ("```rust editable\nlet s = \"foo\n # bar\n\";\n```",
-               "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-assignment syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
+               "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
               ("```rust editable\nlet s = \"foo\n ## bar\n\";\n```",
-                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-assignment syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> # bar\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
+                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> # bar\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
               ("```rust editable\nlet s = \"foo\n # bar\n#\n\";\n```",
-                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-assignment syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
+                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
               ("```rust ignore\nlet s = \"foo\n # bar\n\";\n```",
-                "<pre><code class=\"language-rust ignore\"><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-storage syn-type syn-function syn-rust\">fn</span> </span><span class=\"syn-entity syn-name syn-function syn-rust\">main</span></span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-parameters syn-rust\"><span class=\"syn-punctuation syn-section syn-parameters syn-begin syn-rust\">(</span></span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-function syn-parameters syn-rust\"><span class=\"syn-punctuation syn-section syn-parameters syn-end syn-rust\">)</span></span></span></span><span class=\"syn-meta syn-function syn-rust\"> </span><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-punctuation syn-section syn-block syn-begin syn-rust\">{</span>\n</span></span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-assignment syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span></span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n</span></span></span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-function syn-rust\"><span class=\"syn-meta syn-block syn-rust\"><span class=\"syn-punctuation syn-section syn-block syn-end syn-rust\">}</span></span></span>\n</span></span></code></pre>"),
+                "<pre><code class=\"language-rust ignore\"><span class=\"syn-source syn-rust\"><span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo\n</span></span><span class=\"boring\"><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"> bar\n</span></span></span><span class=\"syn-source syn-rust\"><span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n</span></code></pre>"),
               ("```rust editable\n#![no_std]\nlet s = \"foo\";\n #[some_attr]\n```",
-                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-annotation syn-rust\"><span class=\"syn-punctuation syn-definition syn-annotation syn-rust\">#!</span><span class=\"syn-punctuation syn-section syn-group syn-begin syn-rust\">[</span><span class=\"syn-variable syn-annotation syn-rust\">no_std</span><span class=\"syn-punctuation syn-section syn-group syn-end syn-rust\">]</span></span>\n<span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-assignment syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo<span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n <span class=\"syn-meta syn-annotation syn-rust\"><span class=\"syn-punctuation syn-definition syn-annotation syn-rust\">#</span><span class=\"syn-punctuation syn-section syn-group syn-begin syn-rust\">[</span><span class=\"syn-variable syn-annotation syn-rust\">some_attr</span><span class=\"syn-punctuation syn-section syn-group syn-end syn-rust\">]</span></span>\n</span></code></pre>"),
+                "<pre class=\"playground\"><code class=\"language-rust editable\"><span class=\"syn-source syn-rust\"><span class=\"syn-meta syn-annotation syn-rust\"><span class=\"syn-punctuation syn-definition syn-annotation syn-rust\">#!</span><span class=\"syn-punctuation syn-section syn-group syn-begin syn-rust\">[</span><span class=\"syn-variable syn-annotation syn-rust\">no_std</span><span class=\"syn-punctuation syn-section syn-group syn-end syn-rust\">]</span></span>\n<span class=\"syn-storage syn-type syn-rust\">let</span> s <span class=\"syn-keyword syn-operator syn-rust\">=</span> <span class=\"syn-string syn-quoted syn-double syn-rust\"><span class=\"syn-punctuation syn-definition syn-string syn-begin syn-rust\">&quot;</span>foo<span class=\"syn-punctuation syn-definition syn-string syn-end syn-rust\">&quot;</span></span><span class=\"syn-punctuation syn-terminator syn-rust\">;</span>\n <span class=\"syn-meta syn-annotation syn-rust\"><span class=\"syn-punctuation syn-definition syn-annotation syn-rust\">#</span><span class=\"syn-punctuation syn-section syn-group syn-begin syn-rust\">[</span><span class=\"syn-variable syn-annotation syn-rust\">some_attr</span><span class=\"syn-punctuation syn-section syn-group syn-end syn-rust\">]</span></span>\n</span></code></pre>"),
             ];
             for (src, should_be) in &inputs {
                 let got = render_markdown(
@@ -812,7 +816,7 @@ more text with spaces
               ("```html,testhtml\n<p>\n```",
                "<pre><code class=\"language-html testhtml\"><span class=\"syn-text syn-html syn-basic\"><span class=\"syn-meta syn-tag syn-block syn-any syn-html\"><span class=\"syn-punctuation syn-definition syn-tag syn-begin syn-html\">&lt;</span><span class=\"syn-entity syn-name syn-tag syn-block syn-any syn-html\">p</span><span class=\"syn-punctuation syn-definition syn-tag syn-end syn-html\">&gt;</span></span>\n</span></code></pre>"),
               ("```js es7\nf()\n```",
-               "<pre><code class=\"language-js es7\"><span class=\"syn-source syn-js\"><span class=\"syn-meta syn-function-call syn-without-arguments syn-js\"><span class=\"syn-variable syn-function syn-js\">f</span><span class=\"syn-meta syn-group syn-braces syn-round syn-function syn-arguments syn-js\">()</span></span>\n</span></code></pre>"),
+               "<pre><code class=\"language-js es7\"><span class=\"syn-source syn-js\"><span class=\"syn-meta syn-function-call syn-js\"><span class=\"syn-variable syn-function syn-js\">f</span><span class=\"syn-meta syn-group syn-js\"><span class=\"syn-punctuation syn-section syn-group syn-js\">(</span></span><span class=\"syn-meta syn-group syn-js\"><span class=\"syn-punctuation syn-section syn-group syn-js\">)</span></span></span>\n</span></code></pre>"),
             ];
             for (src, should_be) in &inputs {
                 let got = render_markdown(

tests/rendered_output.rs

@@ -515,6 +515,44 @@ fn theme_dir_overrides_work_correctly() {
     dummy_book::assert_contains_strings(built_index, &["This is a modified index.hbs!"]);
 }
 
+#[test]
+fn theme_dir_syntaxesdotbin_prevents_default_highlighting() {
+    let book_dir = dummy_book::new_copy_of_example_book().unwrap();
+    let book_dir = book_dir.path();
+    let theme_dir = book_dir.join("theme");
+
+    let empty_syntaxset = syntect::parsing::SyntaxSet::new();
+    let empty_syntaxset_dump = syntect::dumps::dump_binary(&empty_syntaxset);
+    write_file(&theme_dir, "syntaxes.bin", &empty_syntaxset_dump).unwrap();
+
+    let md = MDBook::load(book_dir).unwrap();
+    md.build().unwrap();
+
+    let second = book_dir.join("book/format/mdbook.html");
+
+    assert_doesnt_contain_strings(&second, &["syn-rust", "rustmodifiedtestfixture"]);
+}
+
+#[test]
+fn theme_dir_syntaxesdotbin_reads_syntaxes() {
+    let book_dir = dummy_book::new_copy_of_example_book().unwrap();
+    let book_dir = book_dir.path();
+    let theme_dir = book_dir.join("theme");
+
+    let syntaxset_test_fixture =
+        syntect::parsing::SyntaxSet::load_from_folder("tests/syntax_test_fixtures").unwrap();
+    let syntaxset_test_fixture = syntect::dumps::dump_binary(&syntaxset_test_fixture);
+    write_file(&theme_dir, "syntaxes.bin", &syntaxset_test_fixture).unwrap();
+
+    let md = MDBook::load(book_dir).unwrap();
+    md.build().unwrap();
+
+    let second = book_dir.join("book/format/mdbook.html");
+
+    assert_contains_strings(&second, &["syn-rustmodifiedtestfixture"]);
+    assert_doesnt_contain_strings(&second, &["syn-rust\""]);
+}
+
 #[test]
 fn no_index_for_print_html() {
     let temp = DummyBook::new().build().unwrap();

tests/syntax_test_fixtures/rust-modified.sublime-syntax

@@ -0,0 +1,92 @@
+%YAML 1.2
+---
+# http://www.sublimetext.com/docs/3/syntax.html
+#
+# Based on https://github.com/sublimehq/Packages/tree/759d6eed9b4beed87e602a23303a121c3a6c2fb3/Rust
+# but with rustmodifiedtestfixture added everywhere and somewhat truncated.
+name: Rust
+file_extensions:
+  - rs
+scope: source.rustmodifiedtestfixture
+variables:
+  identifier: '(?:(?:[[:alpha:]][_[:alnum:]]*|_[_[:alnum:]]+)\b)' # include a word boundary at the end to ensure all possible characters are consumed, to prevent catastrophic backtracking
+  escaped_byte: '\\(x\h{2}|n|r|t|0|"|''|\\)'
+  escaped_char: '\\(x\h{2}|n|r|t|0|"|''|\\|u\{\h{1,6}\})'
+  int_suffixes: 'i8|i16|i32|i64|i128|isize|u8|u16|u32|u64|u128|usize'
+  support_type: \b(Copy|Send|Sized|Sync|Drop|Fn|FnMut|FnOnce|Box|ToOwned|Clone|PartialEq|PartialOrd|Eq|Ord|AsRef|AsMut|Into|From|Default|Iterator|Extend|IntoIterator|DoubleEndedIterator|ExactSizeIterator|Option|Some|None|Result|Ok|Err|SliceConcatExt|String|ToString|Vec)\b
+contexts:
+  main:
+    - include: statements
+
+  prototype:
+    # Macro metavariables. Ideally we would do this as a with_prototype,
+    # however then we run into infinite recursion. It needs to be a prototype
+    # since macro_rules! allows constructing new code, thus the metavariables
+    # can be inserted in just about any position in the syntax.
+    - match: '\${{identifier}}'
+      scope: variable.other.rustmodifiedtestfixture
+
+  else-pop:
+    - match: (?=\S)
+      pop: true
+
+  pop-immediately:
+    - match: ''
+      pop: true
+
+  statements:
+
+    - match: '(''{{identifier}})\s*(:)'
+      captures:
+        1: entity.name.label.rustmodifiedtestfixture
+        2: punctuation.separator.rustmodifiedtestfixture
+    - match: '''{{identifier}}(?!\'')\b'
+      scope: storage.modifier.lifetime.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?\b(mod)\s+({{identifier}})\b'
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.module.rustmodifiedtestfixture
+        3: entity.name.module.rustmodifiedtestfixture
+
+    - match: '\b({{identifier}})\s*(=)\s*(?=\|)'
+      captures:
+        1: entity.name.function.rustmodifiedtestfixture
+        2: keyword.operator.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?\b(fn)\s+(?={{identifier}})'
+      scope: meta.function.rustmodifiedtestfixture
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.function.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?(struct)\s+'
+      scope: meta.struct.rustmodifiedtestfixture
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.struct.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?(type)\s+({{identifier}})\b'
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.type.rustmodifiedtestfixture
+        3: entity.name.type.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?(trait)\s+({{identifier}})\b'
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.trait.rustmodifiedtestfixture
+        3: entity.name.trait.rustmodifiedtestfixture
+
+    - match: '\bimpl\b'
+      scope: storage.type.impl.rustmodifiedtestfixture
+
+    - match: '\b(?:(pub)\s+)?(enum)\s+({{identifier}})\b'
+      captures:
+        1: storage.modifier.rustmodifiedtestfixture
+        2: storage.type.enum.rustmodifiedtestfixture
+        3: entity.name.enum.rustmodifiedtestfixture
+
+    - match: \b(let|const|static)\b
+      scope: storage.type.rustmodifiedtestfixture
+