[Feature Request] Highlight focus tabs action (on double-click or in context menu)

[koorool]

When working with Tree Style Tabs I usually have 1-3 most important tabs that are currently in my focus.
I found useful Google Chrome Sidewise extension that has "Highlight" functionality. I set it on double-click action.

So whenever I work on some document and open million tabs for investigation or have active phone call, I can always highlight them to return quickly!