Hi everyone,
[I should have sent this message sooner -- apologies, and thanks to Martin Sivak for the reminder!]
If you're trying out oVirt 4.2 Beta, please check that any existing UI plugins [1] you are using 1. still work (they should!), and 2. look good in the new UI. If something doesn't look quite right with a UI plugin [for example, if it doesn't quite match the new theme], please contact Alexander Wels and me and we can assist with getting it updated.