This is unrelated to semps, but his a link to some of my aeoniums pictures from the fall. Hopefully, semps don't get too carried away with varigated plants. I definitely think that has happened with the Aeoniums.
They all live in the basement for the winter. I have a shelf with some grow lights on them that they do pretty well under. I do need to cut everything back to a single head to help save some space though. I'm hoping the greenhouse helps delay having to bring them inside.