src/vs/workbench/services/themes/electron-sandbox/nativeHostColorSchemeService.ts/NativeHostColorSchemeService/getStoredValue
class NativeHostColorSchemeService:	private getStoredValue(): IColorScheme | undefined {
		const stored = this.storageService.get(NativeHostColorSchemeService.STORAGE_KEY, StorageScope.GLOBAL);
		if (stored) {
			try {
				const scheme = JSON.parse(stored);
				if (isObject(scheme) && isBoolean(scheme.highContrast) && isBoolean(scheme.dark)) {
					return scheme as IColorScheme;
				}
			} catch (e) {
				// ignore
			}
		}
		return undefined;
	}