I am trying to use carousel, progress bar, etc. from Silk UI in London Theme. But so far, it seems not possible. Those widgets simply do not work and the console browser is full of errors. Just to be sure... London Theme supports all the features of Silk UI? Where can I see the compatibility? 

Hi João,

The Silk UI Framework are themes by themselves. Most blocks from the Silk won't work correctly unless they are used with a Silk UI based theme, that London (or any of the RichWidgets themes) is not.

João Rosado

"Can I use the London theme with Silk UI?

No. The Silk UI patterns depend on some page layout logic, which is not present in London. The Liverpool theme is the closest match to the London theme. "