diff --git a/crates/zed/src/languages/c/highlights.scm b/crates/zed/src/languages/c/highlights.scm
index 007c871ffaf33edddf634aa467dd86ce9e718377..064ec61a378beb00417e6b6716a6f1358daa5cbf 100644
--- a/crates/zed/src/languages/c/highlights.scm
+++ b/crates/zed/src/languages/c/highlights.scm
@@ -86,7 +86,7 @@
 (identifier) @variable
 
 ((identifier) @constant
- (#match? @constant "^[A-Z][A-Z\\d_]*$"))
+ (#match? @constant "^_*[A-Z][A-Z\\d_]*$"))
 
 (call_expression
   function: (identifier) @function)
diff --git a/crates/zed/src/languages/cpp/highlights.scm b/crates/zed/src/languages/cpp/highlights.scm
index 2dd9188308c874dd3204a3f8fa8f5efa258e1bc5..bcfa01ca5c6aca231d444026af94c7f6c6b32f51 100644
--- a/crates/zed/src/languages/cpp/highlights.scm
+++ b/crates/zed/src/languages/cpp/highlights.scm
@@ -37,11 +37,11 @@
 (type_identifier) @type
 
 ((identifier) @constant
- (#match? @constant "^[A-Z][A-Z\\d_]*$"))
+ (#match? @constant "^_*[A-Z][A-Z\\d_]*$"))
 
 (field_identifier) @property
 (statement_identifier) @label
-(this) @variable.builtin
+(this) @variable.special
 
 [
   "break"
diff --git a/crates/zed/src/languages/css/highlights.scm b/crates/zed/src/languages/css/highlights.scm
index 3638837af7eb70a4b823939cb3624a099f36fb4c..e271d8583c661b62f1a0bf5f4c848ca34cdbdc9d 100644
--- a/crates/zed/src/languages/css/highlights.scm
+++ b/crates/zed/src/languages/css/highlights.scm
@@ -41,10 +41,13 @@
 
 (function_name) @function
 
-((property_name) @variable
- (#match? @variable "^--"))
-((plain_value) @variable
- (#match? @variable "^--"))
+(
+  [
+    (property_name)
+    (plain_value)
+  ] @variable.special
+  (#match? @variable.special "^--")
+)
 
 [
   "@media"
@@ -70,7 +73,6 @@
 (unit) @type
 
 [
-  "#"
   ","
   ":"
 ] @punctuation.delimiter
diff --git a/crates/zed/src/languages/javascript/highlights.scm b/crates/zed/src/languages/javascript/highlights.scm
index d3921cdbc8096ce2a21acd28325c89cf14a383cc..bd1986b6b3aa9d00c3596f4b8e927c7961078219 100644
--- a/crates/zed/src/languages/javascript/highlights.scm
+++ b/crates/zed/src/languages/javascript/highlights.scm
@@ -51,12 +51,12 @@
   (shorthand_property_identifier)
   (shorthand_property_identifier_pattern)
  ] @constant
- (#match? @constant "^[A-Z_][A-Z\\d_]+$"))
+ (#match? @constant "^_*[A-Z_][A-Z\\d_]*$"))
 
 ; Literals
 
-(this) @variable.builtin
-(super) @variable.builtin
+(this) @variable.special
+(super) @variable.special
 
 [
   (true)
diff --git a/crates/zed/src/languages/python/highlights.scm b/crates/zed/src/languages/python/highlights.scm
index 118af92aaaff8fdf28ba75aa0456931f04fb5aa2..71ab963d82664db4dd9a66b9e9ac0e85449caf57 100644
--- a/crates/zed/src/languages/python/highlights.scm
+++ b/crates/zed/src/languages/python/highlights.scm
@@ -21,7 +21,7 @@
  (#match? @type "^[A-Z]"))
 
 ((identifier) @constant
- (#match? @constant "^[A-Z][A-Z_]*$"))
+ (#match? @constant "^_*[A-Z][A-Z\\d_]*$"))
 
 ; Builtin functions
 
diff --git a/crates/zed/src/languages/rust/highlights.scm b/crates/zed/src/languages/rust/highlights.scm
index 72482b4073724f7bb664a6f62624bdd2e5eb6e1c..98ea1ee40ea1f3bebf13ae392e9c3192bbe79c51 100644
--- a/crates/zed/src/languages/rust/highlights.scm
+++ b/crates/zed/src/languages/rust/highlights.scm
@@ -1,6 +1,6 @@
 (type_identifier) @type
 (primitive_type) @type.builtin
-(self) @variable.builtin
+(self) @variable.special
 (field_identifier) @property
 
 (call_expression
@@ -27,22 +27,13 @@
 
 ; Identifier conventions
 
-; Assume uppercase names are enum constructors
-((identifier) @variant
- (#match? @variant "^[A-Z]"))
-
-; Assume that uppercase names in paths are types
-((scoped_identifier
-  path: (identifier) @type)
- (#match? @type "^[A-Z]"))
-((scoped_identifier
-  path: (scoped_identifier
-    name: (identifier) @type))
+; Assume uppercase names are types/enum-constructors
+((identifier) @type
  (#match? @type "^[A-Z]"))
 
 ; Assume all-caps names are constants
 ((identifier) @constant
- (#match? @constant "^[A-Z][A-Z\\d_]+$"))
+ (#match? @constant "^_*[A-Z][A-Z\\d_]*$"))
 
 [
   "("
diff --git a/crates/zed/src/languages/typescript/highlights.scm b/crates/zed/src/languages/typescript/highlights.scm
index d3921cdbc8096ce2a21acd28325c89cf14a383cc..bd1986b6b3aa9d00c3596f4b8e927c7961078219 100644
--- a/crates/zed/src/languages/typescript/highlights.scm
+++ b/crates/zed/src/languages/typescript/highlights.scm
@@ -51,12 +51,12 @@
   (shorthand_property_identifier)
   (shorthand_property_identifier_pattern)
  ] @constant
- (#match? @constant "^[A-Z_][A-Z\\d_]+$"))
+ (#match? @constant "^_*[A-Z_][A-Z\\d_]*$"))
 
 ; Literals
 
-(this) @variable.builtin
-(super) @variable.builtin
+(this) @variable.special
+(super) @variable.special
 
 [
   (true)
diff --git a/styles/src/themes/common/base16.ts b/styles/src/themes/common/base16.ts
index 326928252e837c7784cc4db2217a00f2905f0fae..cd6d46a771dbd3d3814ef03e4f657b03800481a3 100644
--- a/styles/src/themes/common/base16.ts
+++ b/styles/src/themes/common/base16.ts
@@ -185,6 +185,10 @@ export function createTheme(
       color: sample(ramps.neutral, 7),
       weight: fontWeights.normal,
     },
+    "variable.special": {
+      color: sample(ramps.blue, 0.80),
+      weight: fontWeights.normal,
+    },
     comment: {
       color: sample(ramps.neutral, 5),
       weight: fontWeights.normal,
@@ -210,15 +214,11 @@ export function createTheme(
       weight: fontWeights.normal,
     },
     constructor: {
-      color: sample(ramps.blue, 0.5),
-      weight: fontWeights.normal,
-    },
-    variant: {
-      color: sample(ramps.blue, 0.5),
+      color: sample(ramps.cyan, 0.5),
       weight: fontWeights.normal,
     },
     property: {
-      color: sample(ramps.blue, 0.5),
+      color: sample(ramps.blue, 0.6),
       weight: fontWeights.normal,
     },
     enum: {
diff --git a/styles/src/themes/common/theme.ts b/styles/src/themes/common/theme.ts
index b93148ae2cff53809a7a4fe390c532e8ef726fa7..a787443f31b00487ef6c8463fd4045dd18a2baca 100644
--- a/styles/src/themes/common/theme.ts
+++ b/styles/src/themes/common/theme.ts
@@ -43,7 +43,7 @@ export interface Syntax {
   keyword: SyntaxHighlightStyle;
   function: SyntaxHighlightStyle;
   type: SyntaxHighlightStyle;
-  variant: SyntaxHighlightStyle;
+  constructor: SyntaxHighlightStyle;
   property: SyntaxHighlightStyle;
   enum: SyntaxHighlightStyle;
   operator: SyntaxHighlightStyle;