Checkbox with colored background?

Can anyone please point me to a freeware checkbox component that
allows the background of the checkmark to change color? I have seen
several that allow the color behind the text to be changed, but I want
to be able to change the area in the actual box.

Or, if you have some code I can add to one of the existing components
to make a new one that would have this capability that would be great.

Thanks
Harvey
.