[Gemma]

Try changing the stylevar tabslight_selected_background - not sure if that will help you with what you are trying to do though because the tabs for the arcade and MEMBERINFO use the same css.

To get around it, you may need to rename the tabslight class in the v3ARCADE_MAIN, make a copy of the code in vbulletin.css that I mentioned then rename the instances of tabslight to whatever you call the new class in v3ARCADE_MAIN - for example if you renamed the class as <dl class="arcade_tabslight">, you would make an exact copy of the code under /* LIGHT-TABS */ in vbulletin.css but change all the tabslight to arcade_tabslight.