diff --git a/extensions/vscode-colorize-tests/test/colorize-fixtures/test-issue241715.ts b/extensions/vscode-colorize-tests/test/colorize-fixtures/test-issue241715.ts
index ff95456b856..ebfddb5daa1 100644
--- a/extensions/vscode-colorize-tests/test/colorize-fixtures/test-issue241715.ts
+++ b/extensions/vscode-colorize-tests/test/colorize-fixtures/test-issue241715.ts
@@ -45,3 +45,6 @@ function makeDate(mOrTimestamp: number, d?: number, y?: number): Date {
 type StringNumberBooleans = [string, number, ...boolean[]];
 type StringBooleansNumber = [string, ...boolean[], number];
 type BooleansStringNumber = [...boolean[], string, number];
+
+let s = '2';
++s;
diff --git a/extensions/vscode-colorize-tests/test/colorize-results/test-issue241715_ts.json b/extensions/vscode-colorize-tests/test/colorize-results/test-issue241715_ts.json
index 96a67b213ca..da9e674e46c 100644
--- a/extensions/vscode-colorize-tests/test/colorize-results/test-issue241715_ts.json
+++ b/extensions/vscode-colorize-tests/test/colorize-results/test-issue241715_ts.json
@@ -6859,6 +6859,188 @@
 			"light_modern": "default: #3B3B3B"
 		}
 	},
+	{
+		"c": ";",
+		"t": "source.ts punctuation.terminator.statement.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "let",
+		"t": "source.ts meta.var.expr.ts storage.type.ts",
+		"r": {
+			"dark_plus": "storage.type: #569CD6",
+			"light_plus": "storage.type: #0000FF",
+			"dark_vs": "storage.type: #569CD6",
+			"light_vs": "storage.type: #0000FF",
+			"hc_black": "storage.type: #569CD6",
+			"dark_modern": "storage.type: #569CD6",
+			"hc_light": "storage.type: #0F4A85",
+			"light_modern": "storage.type: #0000FF"
+		}
+	},
+	{
+		"c": " ",
+		"t": "source.ts meta.var.expr.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "s",
+		"t": "source.ts meta.var.expr.ts meta.var-single-variable.expr.ts meta.definition.variable.ts variable.other.readwrite.ts",
+		"r": {
+			"dark_plus": "variable: #9CDCFE",
+			"light_plus": "variable: #001080",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "variable: #9CDCFE",
+			"dark_modern": "variable: #9CDCFE",
+			"hc_light": "variable: #001080",
+			"light_modern": "variable: #001080"
+		}
+	},
+	{
+		"c": " ",
+		"t": "source.ts meta.var.expr.ts meta.var-single-variable.expr.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "=",
+		"t": "source.ts meta.var.expr.ts keyword.operator.assignment.ts",
+		"r": {
+			"dark_plus": "keyword.operator: #D4D4D4",
+			"light_plus": "keyword.operator: #000000",
+			"dark_vs": "keyword.operator: #D4D4D4",
+			"light_vs": "keyword.operator: #000000",
+			"hc_black": "keyword.operator: #D4D4D4",
+			"dark_modern": "keyword.operator: #D4D4D4",
+			"hc_light": "keyword.operator: #000000",
+			"light_modern": "keyword.operator: #000000"
+		}
+	},
+	{
+		"c": " ",
+		"t": "source.ts meta.var.expr.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "'",
+		"t": "source.ts meta.var.expr.ts string.quoted.single.ts punctuation.definition.string.begin.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": "2",
+		"t": "source.ts meta.var.expr.ts string.quoted.single.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": "'",
+		"t": "source.ts meta.var.expr.ts string.quoted.single.ts punctuation.definition.string.end.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": ";",
+		"t": "source.ts punctuation.terminator.statement.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "+",
+		"t": "source.ts keyword.operator.arithmetic.ts",
+		"r": {
+			"dark_plus": "keyword.operator: #D4D4D4",
+			"light_plus": "keyword.operator: #000000",
+			"dark_vs": "keyword.operator: #D4D4D4",
+			"light_vs": "keyword.operator: #000000",
+			"hc_black": "keyword.operator: #D4D4D4",
+			"dark_modern": "keyword.operator: #D4D4D4",
+			"hc_light": "keyword.operator: #000000",
+			"light_modern": "keyword.operator: #000000"
+		}
+	},
+	{
+		"c": "s",
+		"t": "source.ts variable.other.readwrite.ts",
+		"r": {
+			"dark_plus": "variable: #9CDCFE",
+			"light_plus": "variable: #001080",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "variable: #9CDCFE",
+			"dark_modern": "variable: #9CDCFE",
+			"hc_light": "variable: #001080",
+			"light_modern": "variable: #001080"
+		}
+	},
 	{
 		"c": ";",
 		"t": "source.ts punctuation.terminator.statement.ts",
diff --git a/extensions/vscode-colorize-tests/test/colorize-tree-sitter-results/test-issue241715_ts.json b/extensions/vscode-colorize-tests/test/colorize-tree-sitter-results/test-issue241715_ts.json
index 6d4254d3ab7..c7c13ff004c 100644
--- a/extensions/vscode-colorize-tests/test/colorize-tree-sitter-results/test-issue241715_ts.json
+++ b/extensions/vscode-colorize-tests/test/colorize-tree-sitter-results/test-issue241715_ts.json
@@ -2479,7 +2479,7 @@
 	},
 	{
 		"c": "value",
-		"t": "variable.ts",
+		"t": "variable.ts variable.parameter.ts",
 		"r": {
 			"dark_plus": "variable: #9CDCFE",
 			"light_plus": "variable: #001080",
@@ -4675,6 +4675,146 @@
 			"light_modern": "default: #3B3B3B"
 		}
 	},
+	{
+		"c": ";",
+		"t": "punctuation.delimiter.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "let",
+		"t": "storage.type.ts",
+		"r": {
+			"dark_plus": "storage.type: #569CD6",
+			"light_plus": "storage.type: #0000FF",
+			"dark_vs": "storage.type: #569CD6",
+			"light_vs": "storage.type: #0000FF",
+			"hc_black": "storage.type: #569CD6",
+			"dark_modern": "storage.type: #569CD6",
+			"hc_light": "storage.type: #0F4A85",
+			"light_modern": "storage.type: #0000FF"
+		}
+	},
+	{
+		"c": "s",
+		"t": "variable.ts",
+		"r": {
+			"dark_plus": "variable: #9CDCFE",
+			"light_plus": "variable: #001080",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "variable: #9CDCFE",
+			"dark_modern": "variable: #9CDCFE",
+			"hc_light": "variable: #001080",
+			"light_modern": "variable: #001080"
+		}
+	},
+	{
+		"c": "=",
+		"t": "keyword.operator.assignment.ts",
+		"r": {
+			"dark_plus": "keyword.operator: #D4D4D4",
+			"light_plus": "keyword.operator: #000000",
+			"dark_vs": "keyword.operator: #D4D4D4",
+			"light_vs": "keyword.operator: #000000",
+			"hc_black": "keyword.operator: #D4D4D4",
+			"dark_modern": "keyword.operator: #D4D4D4",
+			"hc_light": "keyword.operator: #000000",
+			"light_modern": "keyword.operator: #000000"
+		}
+	},
+	{
+		"c": "'",
+		"t": "string.quoted.single.ts punctuation.definition.string.begin.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": "2",
+		"t": "string.quoted.single.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": "'",
+		"t": "string.quoted.single.ts punctuation.definition.string.end.ts",
+		"r": {
+			"dark_plus": "string: #CE9178",
+			"light_plus": "string: #A31515",
+			"dark_vs": "string: #CE9178",
+			"light_vs": "string: #A31515",
+			"hc_black": "string: #CE9178",
+			"dark_modern": "string: #CE9178",
+			"hc_light": "string: #0F4A85",
+			"light_modern": "string: #A31515"
+		}
+	},
+	{
+		"c": ";",
+		"t": "punctuation.delimiter.ts",
+		"r": {
+			"dark_plus": "default: #D4D4D4",
+			"light_plus": "default: #000000",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "default: #FFFFFF",
+			"dark_modern": "default: #CCCCCC",
+			"hc_light": "default: #292929",
+			"light_modern": "default: #3B3B3B"
+		}
+	},
+	{
+		"c": "+",
+		"t": "keyword.operator.arithmetic.ts",
+		"r": {
+			"dark_plus": "keyword.operator: #D4D4D4",
+			"light_plus": "keyword.operator: #000000",
+			"dark_vs": "keyword.operator: #D4D4D4",
+			"light_vs": "keyword.operator: #000000",
+			"hc_black": "keyword.operator: #D4D4D4",
+			"dark_modern": "keyword.operator: #D4D4D4",
+			"hc_light": "keyword.operator: #000000",
+			"light_modern": "keyword.operator: #000000"
+		}
+	},
+	{
+		"c": "s",
+		"t": "variable.ts",
+		"r": {
+			"dark_plus": "variable: #9CDCFE",
+			"light_plus": "variable: #001080",
+			"dark_vs": "default: #D4D4D4",
+			"light_vs": "default: #000000",
+			"hc_black": "variable: #9CDCFE",
+			"dark_modern": "variable: #9CDCFE",
+			"hc_light": "variable: #001080",
+			"light_modern": "variable: #001080"
+		}
+	},
 	{
 		"c": ";",
 		"t": "punctuation.delimiter.ts",
diff --git a/src/vs/editor/common/languages/highlights/typescript.scm b/src/vs/editor/common/languages/highlights/typescript.scm
index 860ef7027a1..36303c5b3e1 100644
--- a/src/vs/editor/common/languages/highlights/typescript.scm
+++ b/src/vs/editor/common/languages/highlights/typescript.scm
@@ -130,6 +130,9 @@
 (arrow_function
   parameter: (identifier) @variable.parameter.ts)
 
+(type_predicate
+  name: (identifier) @variable.parameter.ts)
+
 ; Function and method calls
 
 (call_expression
@@ -238,6 +241,7 @@
 
 (unary_expression ([
   "-"
+  "+"
 ]) @keyword.operator.arithmetic.ts)
 
 [