Can't answer that, as I am not good enough with the skin engine. I can confirm that string.equals() & eq() are definitely not working in videoosd.xml where you use them to compare skin variables from 3rd party plugins with the play.title variable. It's interesting that you said that you can even expose B0.Label using <label> tags? I would start there I've only seen skinsettings.xml used with <include>(import) statements. Titan Flow theme has a lot of skinsettings.