I guess this is not possible. However my bosses are really interested in this functionality. I've been searching around but I don't see this is possible by using a custom CSS sheet.
As an example, we need the widget to turn red when the database is down, or orange if threads are greater than a number. Green otherwise. I know there is the up/down widget but it's not enough, furthermore they want the whole widget to turn to another color, not just the text, so it gets more visual.
There is any way that I can achieve this?