const { systemPreferences } = process._linkedBinding('electron_browser_system_preferences'); if ('getAppLevelAppearance' in systemPreferences) { const nativeALAGetter = systemPreferences.getAppLevelAppearance; const nativeALASetter = systemPreferences.setAppLevelAppearance; Object.defineProperty(systemPreferences, 'appLevelAppearance', { get: () => nativeALAGetter.call(systemPreferences), set: (appearance) => nativeALASetter.call(systemPreferences, appearance) }); } if ('getEffectiveAppearance' in systemPreferences) { const nativeEAGetter = systemPreferences.getEffectiveAppearance; Object.defineProperty(systemPreferences, 'effectiveAppearance', { get: () => nativeEAGetter.call(systemPreferences) }); } export default systemPreferences;