src/vs/workbench/services/extensions/common/extensionManifestPropertiesService.ts/ExtensionManifestPropertiesService/canExecuteOnUI
class ExtensionManifestPropertiesService:	canExecuteOnUI(manifest: IExtensionManifest): boolean {
		const extensionKind = this.getExtensionKind(manifest);
		return extensionKind.some(kind => kind === 'ui');
	}