textmate-scheme-support

Scheme language support (R7RS+/#F) for TextMate-based editors (Sublime, VS Code, ...)

Colorizer (scheme.tmLanguage)

Mostly follows R7RS syntax definitions, with some extensions:

Known colorizer problems (most probably cannot be easily fixed):

colorizer gets confused by datum prefixes such as ` ' , ,@ #& if the datum that follows is separated by newlines or comments
definition coloring can be easily fooled by newlines and/or comments in the first two sub-forms
#; comments use relaxed grammar and may be colored incorrectly in some corner cases
coloring of backquoted expressions is not very robust; it fails if double-nested (e.g.`(a `(b ,,c ',,d) e)) or if full forms like (unquote x) are used. Reasonable forms from real code are colored reasonably well.
generally, grammar is relaxed in many places, so some syntax errors won't look like errors (e.g. cons dot can be misplaced).

Derived from Visual Studio Light theme, with the following modifications:

more subdued colors
context-sensitive coloring of character escapes ("in string" vs. |in symbol| vs. standalone)
#f and #t colored differently (red/green)
introduced definitions are shown in bold

Download the scheme.tmLanguage and schemeLight.tmTheme files from GitHub.
In Sublime Text, open the Command Palette (Ctrl+Shift+P on Windows/Linux; ⇧⌘P on OSX) and choose Browse Packages.
Place the scheme.tmLanguage and schemeLight.tmTheme files in the Packages directory.
Update the color_scheme setting in your User Preferences to the path of the new theme (i.e. "Packages/schemeLight.tmTheme").