How to make WPF TabItem Headers' Background transparent?

Question

I have a TabControl with a few TabItems. Each TabItem has a Grid with a TextBlock and one Image, which has transparent areas, in it.

My goal is to have the Text and the

Answer 1

You will need to make a custom TabItem ControlTemplate to do so.

Here is a slightly modified TabItem ControlTemplate (slightly modified from the default one):

You'll probably need to modify it a bit to show what TabItem is selected (in the Trigger on IsSelected).