The area where my tabs exist now has a gray background behind the tabs. Setting the Background property of the TabControl doesn't seem to affect this area, it only seems to affect the area below the tabs themselves. This didn't look this way before upgrading my controls. Is this a bug? Is there a property I can set, or a work-around?
Here is a small example. The tabs are on the left. The area pointed out is the gray I need to change to white.