helix-plus/runtime/queries/git-commit/highlights.scm

(subject) @markup.heading
(path) @string.special.path
(branch) @string.special.symbol
(commit) @constant
(item) @markup.link.url
(header) @tag
(rebase_command) @markup.raw

(change kind: "new file" @diff.plus)
(change kind: "deleted" @diff.minus)
(change kind: "modified" @diff.delta)
(change kind: "renamed" @diff.delta.moved)

[":" "->"] @punctuation.delimeter
(comment) @comment

; once we have diff injections, @comment should become @none
((comment (scissors))
 (message)+ @comment)