When used with text showing... the taskbar buttons display incorrect text color sporadically.
Example, a skin like Corporate that has black selected \active buttons with white text... the fonts show incorrectly as dark instead of white over the button, rendering it almost invisible.
It doesnt happen on all buttons and it doesnt happen all the time, its rather intermittent, however, it makes skins with this type of button color\ text color config virtually unusable.
You may have to use a skin fror a while, open diff apps etc to get it to do it.. or... it may do it immediately after one apply.
It is also showing light text on states that should be dark.. like its completely confused.
Major bug imo.
I have verified it with other skinners on diff. systems and skins.