[semantic tokens] improve code completions for...

[semantic tokens] improve code completions for `editor.semanticTokenColorCustomizations`. Fixes #96351

src/vs/base/common/jsonSchema.ts

@@ -63,6 +63,7 @@ export interface IJSONSchema {
 	markdownEnumDescriptions?: string[];
 	markdownDescription?: string;
 	doNotSuggest?: boolean;
+	suggestSortText?: string;
 	allowComments?: boolean;
 	allowTrailingCommas?: boolean;
 }

src/vs/workbench/services/themes/common/themeConfiguration.ts

@@ -150,11 +150,13 @@ const semanticTokenColorSchema: IJSONSchema = {
 	properties: {
 		enabled: {
 			type: 'boolean',
-			description: nls.localize('editorColors.semanticHighlighting.enabled', 'Whether semantic highlighting is enabled or disabled for this theme')
+			description: nls.localize('editorColors.semanticHighlighting.enabled', 'Whether semantic highlighting is enabled or disabled for this theme'),
+			suggestSortText: '0_enabled'
 		},
 		rules: {
 			$ref: tokenStylingSchemaId,
-			description: nls.localize('editorColors.semanticHighlighting.rules', 'Semantic token styling rules for this theme.')
+			description: nls.localize('editorColors.semanticHighlighting.rules', 'Semantic token styling rules for this theme.'),
+			suggestSortText: '0_rules'
 		}
 	},
 	additionalProperties: false