How to Stretch WPF Tab Item Headers to Parent Control Width

Question

Is there a way in XAML to cause the tab item headers to stretch across the width of the tab control?

For example, I have three tabs: red, blue and green. If I have a

Answer 1

Here is a painless solution that uses Templates only:

Hope I've included all colors and it will work for you. Ahh... Snap! My Desaturation Effect! My WPF startup project you can grab that effect from there if you want (It's easier to plop the effect in trigger, than to recolor all the thing, same with highlights). Yes, that's a lot of code, but I simply changed ItemsContainer to look better and replaced standard Header control with UniformGrid and set Rows or Columns to 1 depending on TabStripPlacement. Now I can collapse this code, or hide it somewhere. :)