Built in button background color

Most of the time I don't need fancy graphics but being able to choose button background color to enhance the descriptive text would be helpful for easy navigation.

I am of course aware that I can create a bunch of squares in different colors that I can upload, but wouldn't it be great if there at least were a basic set of background colors built in to choose from?

In addition it would be useful to be able to choose between white/black text to make sure it is viewable depending on the chosen background color.