nvim-treesitter/queries/lalrpop/highlights.scm

[
  "enum"
  "extern"
  "grammar"
  "match"
  "type"
  "pub"
] @keyword

[
  "match"
  "else"
] @conditional

[
 "+"
 "*"
 "?"
 ; TODO: inaccessible node
 ; =>
 "=>@L"
 "=>@R"
] @operator

(grammar_type_params
  ["<" ">"] @punctuation.bracket)

(symbol
  ["<" ">"] @punctuation.bracket)

(binding_symbol
  ["<" ">"] @punctuation.bracket)

(binding_symbol
  name: (identifier) @parameter)

(bare_symbol
  (macro
    ((macro_id) @type.definition)))

(bare_symbol
  (identifier) @type.definition)

(nonterminal_name
  (macro_id) @type.definition)

(nonterminal_name
  (identifier) @type.definition)

(nonterminal
  (type_ref) @type.builtin)

["(" ")" "[" "]"] @punctuation.bracket

[";" ":"] @punctuation.delimiter

(lifetime (identifier) @storageclass)

(string_literal) @string
(regex_literal) @string