fixes #101978

src/vs/vscode.proposed.d.ts

@@ -358,7 +358,7 @@ declare module 'vscode' {
 
 	export interface ResourceLabelFormatting {
 		label: string; // myLabel:/${path}
-		// TODO@isidorn
+		// For historic reasons we use an or string here. Once we finalize this API we should start using enums instead and adopt it in extensions.
 		// eslint-disable-next-line vscode-dts-literal-or-types
 		separator: '/' | '\\' | '';
 		tildify?: boolean;