src/vs/workbench/contrib/preferences/browser/preferencesRenderers.ts/DefaultSettingsRenderer/getSetting
class DefaultSettingsRenderer:	private getSetting(setting: ISetting): ISetting | undefined {
		const { key, overrideOf } = setting;
		if (overrideOf) {
			const setting = this.getSetting(overrideOf);
			return setting!.overrides!.find(override => override.key === key);
		}
		const settingsGroups = this.filterResult ? this.filterResult.filteredGroups : this.preferencesModel.settingsGroups;
		return this.getPreference(key, settingsGroups);
	}