rP20101 created option tabs, however these tab button had a sprite tag that was unused and wrong since it was referring to a style. The sprite this was removed in rP20176.
But this is still wrong: when clicking a tab in the credits page, you can hear a sound, when performing the same action in the option page we don't hear a sound. This is fixed by adding the style in the xml
Do notice that this style will be overwritten on a selection for the tab.