Mateusz,
You could go and change the colors system-wide, but I don't think that's
what you want to do. To do it for an individual window, you will have to
custom paint the frame.
What you want to do is on the Form class, override the WndProc method,
and then handle the WM_NCPAINT message. This will notify you when the frame
needs to be redrawn. Then, you have to do it yourself, from scratch.
Hope this helps.

Signature
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard.caspershouse.com
> Hello,
>
[quoted text clipped - 3 lines]
>
> Mateusz
Justin Creasy - 21 Dec 2005 16:44 GMT
Another way to handle it would be to completely remove the titlebar and
to create your own titlebar that is docked to the top. It's a bit of
work, but then you have complete control of the design.