Expected Behavior: When I set a background color for checked radio button, only the currently checked radio button should change the color and other should be default grey.

Actual Behavior: For the code here:

radioButton: { check: { color: '#fff', background:{ color: '#3b5ed8' } } }

all the radio buttons show the blue background color and not just the one checked.

URL, screen shot, or Codepen exhibiting the issue

Steps to Reproduce

Your Environment

• Grommet version:
• Browser Name and version: Chrome latest
• Operating System and version (desktop or mobile): Desktop Mac