Change menu item color in Action bar and background color

I'm trying to change the background color for a single item in my navigation using custom CSS, but I'm not getting the syntax correct.

I'm trying to change the background color to the menu item when it is pressed. Change the background color but not the color when pressed.

I'm trying to change the default color for the options menu which is white: I want a black background for every item on the options menu.

Go to WP Admin > Appearance > Menus then click on the Screen Options link on the top right part of the page. Once click, you should see a collapsed panel.

Changing the action bar, status bar and navigation bar colors is done with resources set in the manifest editor. The following code is fully ...

i) change the Background color of the Menu Item to the same as the Action/ Status Bar colour i.e. 'Blue' so that the Menu item is visible and ...

This example demonstrates how to change the background color of the options menu in Android. Step 1 − Create a new project in Android Studio ...

In this lesson, you would learn how to change the background and the text color of the options menu in android studio.

... background & text color for option menu in android studio. how to change option menu theme. Option with sub menu item in android studio ...