Installed the beta version today. Updated the button colors, and changed the icons for the buttons. Only the default button color changed, but not the hover interaction. T the cache was cleared from site and browser, and changes did not take place.
The second issue is how the icon is fitting inside the circle. There is not enough padding on the top of the icon, so the icon sits in the top half of the circle. I have screen shots of the issues and settings, but can not attach them to this thread.