Easy way to search and choose between shared CSS styles

As the shared CSS styles amount increased, it would be great to improve the way to choose beetwen them in the app: first to keep them instead of replace them with the new one, and second to pick one in a list, with at least a preview on the list, or best, an app preview before choosing.
Do you think it could be hard to implement ?

Not really. As far as I can tell, that is.
However, since this involves a UI change, I don't think @laurent will approve it's inclusion until the new UI design is finalized.

On the other hand, if you want to implement it for yourself, you can ask for tips and/or ideas on this forum. I would be happy to help and I think there are others who would too.

Thanks for your answer.
I’m not able at all to implement it myself, that’s why I ask. I just think it could be a great improvement to be able to easily customize the app, now that a bunch of CSS are avalaible.