Change color of onscreen button bar

Question

I'm trying to change the color of the on screen button bar:

I've managed to change the status bar color via the Android Manifest like this:

android:theme="@style/Theme.WebViewApp.Gray"

However I can't seem to figure out how to change from this purple color.

Answer 1

This section of screen called NavigationBar:

You can change color of NavigationBar using: http://developer.android.com/reference/android/view/Window.html#setNavigationBarColor(int)

This Method won't work on API version < 21.

To change navigation bar icon colors you can use the following answers: Change navigation bar icon color on Android