@daschuer No preferences, i am for anything that makes skinning easier. And i really dont care for backward compatibility, because who voluntarily uses pre1.12 skins, missing all the new buzz? 

PS.
Its not just with this PR, but a more general request. If you change how skinning works, please take the time to briefly document  changes in the wiki. It is unlikely that someone is going trough changelogs at a later time to complete the doc . I`ll try to keep up with all the ongoing changes, but may miss stuff. See http://mixxx.org/wiki/doku.php/creating_skins#mixxx_1120
Thanks