feat(capnp): improve queries

queries/capnp/highlights.scm

@@ -1,4 +1,4 @@
-; Preproc (?)
+; Preproc
 
 (unique_id) @preproc
 (top_level_annotation_body) @preproc
@@ -13,18 +13,12 @@
 
 (import_path) @string
 
-; Types
-
-(primitive_type) @type.builtin
+; Builtins
 
 [
-  "annotation"
-  "enum"
-  "group"
-  "interface"
-  "struct"
-  "union"
-] @keyword
+  (primitive_type)
+  "List"
+] @type.builtin
 
 ; Typedefs
 
@@ -52,10 +46,6 @@
 (param_identifier) @parameter
 (return_identifier) @parameter
 
-; Variables
-
-(identifier) @variable
-
 ; Constants
 
 (const_identifier) @constant
@@ -68,8 +58,6 @@
 
 (enum_identifier) @type
 (extend_type) @type
-(field_type) @type
-(generic_identifier) @type
 (type_identifier) @type
 
 ; Attributes
@@ -86,6 +74,16 @@
 
 ; Keywords
 
+
+[
+  "annotation"
+  "enum"
+  "group"
+  "interface"
+  "struct"
+  "union"
+] @keyword
+
 [
   "extends"
   "namespace"
@@ -95,11 +93,16 @@
 
 ; Literals
 
-(string_literal) @string
-(block_text) @string
+[
+  (string)
+  (concatenated_string)
+  (block_text)
+  (namespace)
+] @string
+
+(escape_sequence) @string.escape
 
 (data_string) @string.special
-(namespace) @string.special
 
 (number) @number
 
@@ -116,6 +119,7 @@
 [
   "*"
   "$"
+  ":"
 ] @punctuation.special
 
 ["{" "}"] @punctuation.bracket