Exactly, my mockup shows how tabs could see consistent in every place in Blender - in a graphical way. Cause now tabs looks way diferent from anything in Blender. Besides, that's how mockups works, it's only a proposal, not an official way of Blender UI.

Hi, i forgot i made some mockup with new look of tabs. Little more contrast, i think it shoud be more readable and consistent with rest of UI.