Element appearance according to test results?

[Biges]

Hi!

We have some tests "attached" to an element (Use Case, but that is not important, is it?). And we would like this element to change its appearance/colour according the tests results. E.g. if they all OK, the element would turn green. I know it can be done manually by change its stereotype, but it is not automatic.
And it would be nice, of the parent package would change its appearance according to the results of its elements.

Hope I'm clear enough.

Thanks for your help