src/vs/editor/browser/controller/mouseTarget.ts/ElementPath/isChildOfContentWidgets
class ElementPath:	public static isChildOfContentWidgets(path: Uint8Array): boolean {
		return (
			path.length >= 4
			&& path[0] === PartFingerprint.OverflowGuard
			&& path[3] === PartFingerprint.ContentWidgets
		);
	}