this week update: Tabs on the radiance and ambiance theme are barely visible the contrast is to low on Ubuntu 12.04 unstable

I'm not sure if this is the place to post but... here i go.

tabs on the radiance and ambiance theme are barely visible the contrast is to low.

I noticed after the update on 2012-2-22 that my tabs are barely visible.

The background is almost the same color as the tabs.

On my TV it looks better but not perfect, but on my laptop screen it is almost the same color,
That's because the screen is of a less quality i guess but that is almost the case on every laptop.

Maybe the background has to be a bit darker?