Appium.cs

[TestMethod]
public void PerformActionsButtons()
{
    By byScrollLocator = new ByAndroidUIAutomator("new UiSelector().text(\"Views\");");
    var viewsButton = _driver.FindElement(byScrollLocator);
    viewsButton.Click();

    var controlsViewButton = _driver.FindElementByXPath("//*[@text='Controls']");
    controlsViewButton.Click();

    var lightThemeButton = _driver.FindElementByXPath("//*[@text='1. Light Theme']");
    lightThemeButton.Click();
    var saveButton = _driver.FindElementByXPath("//*[@text='Save']");

    Assert.IsTrue(saveButton.Enabled);
}