Display build status as a progress bar

Hi,

The build are currently display with an icon, a green check if it's ok,
or a red circle if it's not. So as soon as 1 test fails over 1000 tests
for instance, it's all red.
Is it possible to have some kind of progress bar, or color indicator,
that would say that the build is 99% OK, or 50% ?

Yeah, I know, it should always be green :)

Gérald