with the new version of oof i have several bugs after updating:
- thumb list now have a pink color as roll over background
- list ui become visible only after a first click in the list
- (not important) the "keep proportions" param is reset in silex.
when you use a list with a variable row height, the rowHeight property is sometimes NaN. This happens when the list is not yet completely initialized. This has as comsequence that a listui that needs to know its rowHeight sometimes won't appear until you click on a item on the list. The fix in the meantime is not to use varaibleRowHeight.
