Support background color

[valyrie97]

Is there a way to colorize the background of a box?

In #175 it was mentioned as a potential side product of box borders, however, background colors dont seem to be documented anywhere, or possible.

[vadimdemedes]

No, not right now.

Going to leave this issue open to track this feature request, since I'd maybe like to add this back in (background color was supported in Ink 2, but got removed in Ink 3).

[kasra0]

hi, what was the reason for the deletion?

[vadimdemedes]

I don't remember.