src/vs/workbench/contrib/preferences/browser/preferencesEditor.ts/PreferencesRenderersController/_clearFocus
class PreferencesRenderersController:	private _clearFocus(preference: ISetting, preferencesRenderer: IPreferencesRenderer<ISetting>): void {
		if (preference && preferencesRenderer) {
			preferencesRenderer.clearFocus(preference);
		}
	}