---
title: Dark Mode on remote devices | TestingBot
description: Toggle dark mode and light mode on iOS simulators, Android emulators
  and real devices during Appium tests on the TestingBot cloud. Capability examples
  for iOS and Android.
source_url:
  html: https://testingbot.com/support/app-automate/appium/dark-mode
  md: https://testingbot.com/support/app-automate/appium/dark-mode/index.md
---
# Dark Mode testing with Appium

Dark mode is a setting, available on both Android and iOS, which toggles the interface appearance of the phone to use either the standard light mode setting or a dark mode.

When dark mode is enabled, the phone will switch to a dark background with lighter foreground colors, which enables better viewing in low-light conditions.

## Changing Dark Mode

This example will use `mobile: setAppearance` to set the appearance to dark (dark mode).

[Android](https://testingbot.com#)[iOS](https://testingbot.com#)

    const { remote } = require('webdriverio');
    
    const capabilities = {
      'platformName': 'Android',
      'appium:app': 'https://testingbot.com/appium/sample.apk',
      'appium:deviceName': 'Pixel 8',
      'appium:platformVersion': '14.0',
      'appium:automationName': 'UiAutomator2',
      'tb:options': {
        'name': 'Dark Mode Test',
        'realDevice': true
      }
    };
    
    const driver = await remote({
      hostname: 'hub.testingbot.com',
      port: 443,
      protocol: 'https',
      path: '/wd/hub',
      user: 'api_key',
      key: 'api_secret',
      capabilities
    });
    
    // Enable dark mode
    await driver.execute('mobile: setAppearance', { style: 'dark' });
    
    const inputA = await driver.$('~inputA');
    await inputA.setValue('10');
    
    const inputB = await driver.$('~inputB');
    await inputB.setValue('5');
    
    const sum = await driver.$('~sum');
    const value = await sum.getText();
    console.assert(value === '15', 'Sum should be 15');
    
    await driver.deleteSession();

Make sure to always stop your test (`driver.deleteSession()`), otherwise it will continue running, leading to a timeout.

    const { remote } = require('webdriverio');
    
    const capabilities = {
      'platformName': 'iOS',
      'appium:app': 'https://testingbot.com/appium/sample.ipa',
      'appium:deviceName': 'iPhone 15',
      'appium:platformVersion': '17.0',
      'appium:automationName': 'XCUITest',
      'tb:options': {
        'name': 'Dark Mode Test',
        'realDevice': true
      }
    };
    
    const driver = await remote({
      hostname: 'hub.testingbot.com',
      port: 443,
      protocol: 'https',
      path: '/wd/hub',
      user: 'api_key',
      key: 'api_secret',
      capabilities
    });
    
    // Enable dark mode
    await driver.execute('mobile: setAppearance', { style: 'dark' });
    
    const inputA = await driver.$('~inputA');
    await inputA.setValue('10');
    
    const inputB = await driver.$('~inputB');
    await inputB.setValue('5');
    
    await driver.deleteSession();

Make sure to always stop your test (`driver.deleteSession()`), otherwise it will continue running, leading to a timeout.

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