Customizer for colors

Hint in the documentation where to set the button colors etc.
I was searching quite a while to discover in the code that the colors where separated from the other settings and should be set in the Theme-customizer.

Also maybe make a setting available to disable this customizer setup as I’m integrating it in a bootstrap theme the colors from .btn .btn-primary will never be inherited by default as the embedded stylesheet always comes last in the CSS.