Fix Broken Attribute Highlights (#5349)

* Update highlights.scm

* Update highlights.scm

* Update themes.md

book/src/themes.md

@@ -140,6 +140,8 @@ We use a similar set of scopes as
 
 - `type` - Types
   - `builtin` - Primitive types provided by the language (`int`, `usize`)
+  - `enum`
+    - `variant`
 - `constructor`
 
 - `constant` (TODO: constant.other.placeholder for %v)
@@ -202,6 +204,8 @@ We use a similar set of scopes as
 
 - `namespace`
 
+- `special`
+
 - `markup`
   - `heading`
     - `marker`

runtime/queries/rust/highlights.scm

@@ -231,13 +231,6 @@
 ((identifier) @type
   (#match? @type "^[A-Z]"))
 
-(attribute
-  (identifier) @_macro
-  arguments: (token_tree (identifier) @constant.numeric.integer)
-  (#eq? @_macro "derive")
-)
-@special
-
 ; -------
 ; Functions
 ; -------
@@ -269,6 +262,12 @@
 ; Macros
 ; ---
 
+(attribute
+  (identifier) @special
+  arguments: (token_tree (identifier) @type)
+  (#eq? @special "derive")
+)
+
 (attribute
   (identifier) @function.macro)
 (attribute