One small thing is missing: IE8 Emulation?

I used Colorful Tabs until about a year ago, when I switched to Tabkit. Now I'm back because that plugin has become a little too bloated and with some constant issues.

OK. Here's the one thing that made me switch in the first place and that I miss in CT - The option to group tabs with the same color (by domain or if it's a followed link). The grouping then should also keep the tabs together and keep other tabs or groups from using the same color.

If this is implemented, I'll be happy as pie.

And PS - Thanks for the greatly functional Colorful Tabs!

This will take more time. Essentially the idea is to emulate IE8 Behaviour - Keep child tabs next to parent and color them with the color of parent?