Support bracket colorization (rainbow brackets) (#43172)

Deals with https://github.com/zed-industries/zed/issues/5259

Highlights brackets with different colors based on their depth.
Uses existing tree-sitter queries from brackets.scm to find brackets,
uses theme's accents to color them.


https://github.com/user-attachments/assets/cc5f3aba-22fa-446d-9af7-ba6e772029da

1. Adds `colorize_brackets` language setting that allows, per language
or globally for all languages, to configure whether Zed should color the
brackets for a particular language.

Disabled for all languages by default.

2. Any given language can opt-out a certain bracket pair by amending the
brackets.scm like `("\"" @open "\"" @close) ` -> `(("\"" @open "\""
@close) (#set! rainbow.exclude))`

3. Brackets are using colors from theme accents, which can be overridden
as

```jsonc
"theme_overrides": {
  "One Dark": {
    "accents": ["#ff69b4", "#7fff00", "#ff1493", "#00ffff", "#ff8c00", "#9400d3"]
  }
},
```

Release Notes:

- Added bracket colorization (rainbow brackets) support. Use
`colorize_brackets` language setting to enable.

---------

Co-authored-by: MrSubidubi <dev@bahn.sh>
Co-authored-by: Lukas Wirth <lukas@zed.dev>
Co-authored-by: MrSubidubi <finn@zed.dev>
Co-authored-by: Lukas Wirth <me@lukaswirth.dev>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>

crates/languages/src/bash/brackets.scm

@@ -1,12 +1,12 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("`" @open "`" @close)
-(("do" @open "done" @close) (#set! newline.only))
-((case_statement ("in" @open "esac" @close)) (#set! newline.only))
-((if_statement (elif_clause ("then" @open)) (else_clause ("else" @close))) (#set! newline.only))
-((if_statement (else_clause ("else" @open)) "fi" @close) (#set! newline.only))
-((if_statement ("then" @open) (elif_clause ("elif" @close))) (#set! newline.only))
-((if_statement ("then" @open) (else_clause ("else" @close))) (#set! newline.only))
-((if_statement ("then" @open "fi" @close)) (#set! newline.only))
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))
+(("do" @open "done" @close) (#set! newline.only) (#set! rainbow.exclude))
+((case_statement ("in" @open "esac" @close)) (#set! newline.only) (#set! rainbow.exclude))
+((if_statement (elif_clause ("then" @open)) (else_clause ("else" @close))) (#set! newline.only) (#set! rainbow.exclude))
+((if_statement (else_clause ("else" @open)) "fi" @close) (#set! newline.only) (#set! rainbow.exclude))
+((if_statement ("then" @open) (elif_clause ("elif" @close))) (#set! newline.only) (#set! rainbow.exclude))
+((if_statement ("then" @open) (else_clause ("else" @close))) (#set! newline.only) (#set! rainbow.exclude))
+((if_statement ("then" @open "fi" @close)) (#set! newline.only) (#set! rainbow.exclude))

crates/languages/src/c/brackets.scm

@@ -1,5 +1,5 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))

crates/languages/src/cpp/brackets.scm

@@ -1,5 +1,5 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))

crates/languages/src/css/brackets.scm

@@ -1,5 +1,5 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))

crates/languages/src/go/brackets.scm

@@ -1,6 +1,6 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("`" @open "`" @close)
-((rune_literal) @open @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))
+((rune_literal) @open @close (#set! rainbow.exclude))

crates/languages/src/javascript/brackets.scm

@@ -4,6 +4,6 @@
 ("<" @open ">" @close)
 ("<" @open "/>" @close)
 ("</" @open ">" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
-("`" @open "`" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))

crates/languages/src/json/brackets.scm

@@ -1,3 +1,3 @@
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))

crates/languages/src/jsonc/brackets.scm

@@ -1,3 +1,3 @@
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))

crates/languages/src/markdown/brackets.scm

@@ -1,7 +1,7 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("`" @open "`" @close)
-("'" @open "'" @close)
-((fenced_code_block_delimiter) @open (fenced_code_block_delimiter) @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))
+(((fenced_code_block_delimiter) @open (fenced_code_block_delimiter) @close) (#set! rainbow.exclude))

crates/languages/src/python/brackets.scm

@@ -1,4 +1,4 @@
 ("(" @open ")" @close)
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-((string_start) @open (string_end) @close)
+(((string_start) @open (string_end) @close) (#set! rainbow.exclude))

crates/languages/src/rust/brackets.scm

@@ -2,6 +2,6 @@
 ("[" @open "]" @close)
 ("{" @open "}" @close)
 ("<" @open ">" @close)
-("\"" @open "\"" @close)
 (closure_parameters "|" @open "|" @close)
-("'" @open "'" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))

crates/languages/src/tsx/brackets.scm

@@ -4,8 +4,8 @@
 ("<" @open ">" @close)
 ("<" @open "/>" @close)
 ("</" @open ">" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
-("`" @open "`" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))
 
-((jsx_element (jsx_opening_element) @open (jsx_closing_element) @close) (#set! newline.only))
+((jsx_element (jsx_opening_element) @open (jsx_closing_element) @close) (#set! newline.only) (#set! rainbow.exclude))

crates/languages/src/typescript/brackets.scm

@@ -2,6 +2,6 @@
 ("[" @open "]" @close)
 ("{" @open "}" @close)
 ("<" @open ">" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
-("`" @open "`" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))
+(("`" @open "`" @close) (#set! rainbow.exclude))

crates/languages/src/yaml/brackets.scm

@@ -1,4 +1,4 @@
 ("[" @open "]" @close)
 ("{" @open "}" @close)
-("\"" @open "\"" @close)
-("'" @open "'" @close)
+(("\"" @open "\"" @close) (#set! rainbow.exclude))
+(("'" @open "'" @close) (#set! rainbow.exclude))