Increase width of tab group icons?

[rieje]

Is it possible to increase the width of tab group icons? I would like to give it a text value but it's too small. Also would it be possible to have tab group icons expand multi-line so they remain visible (as opposed to hidden behind a menu or requiring horizontal scrolling) when there's more than a few of them?

[madeddy]

I have basically the same questions. The ability to make the tab-panel icons bigger, would be of great value to me.
Any way to do this?