The standard TabControl does not support this. You will have to Completely
OwnerDraw it if you want this effect.
Take a look at the second example on my site.
It is very basic, but the description contains links to more advanced
examples on CodeProject:
http://www.dotnetrix.co.uk/tabcontrols.html
...or
use TabControlEx instead:
http://www.dotnetrix.co.uk/controls.html

Signature
Mick Doherty
http://www.dotnetrix.co.uk/nothing.html
>I can't change the back color (the color behind the labels) of a
> tabcontrol. I changed the tabpages color but the tabs have kept the
> default control color. I don't want to change only the active tab but
> I want to change all the tabs of the TabContrrol.
>
> Thanks.