This format allows you to only test whether the Condition tag is nonblank, and if it is nonblank, WhenTrue is used. If Condition is blank, that bracket is blank. Condition is only a test and is never rendered.
but that would be without coloring
Black boxes with white borders seem to be popular lately. :o
Did you write your own little art mod to get the boxes like that or did you use something like eePanels? I tried to make my own little mod that created frames that looked right, but I ran into frame strata issues...either the black would appear behind the white (so it was washed-out gray), or the boxes would be black but my chat frames wouldn't overlay them. :(