The option for the (enemy)castbar not to be visible when there's no cast, but at the same time, not resize the other bars when there is a cast (Like with the hidden option). With the current options there's still the frame background, which I don't like to be without, except for the castbar. If it could also be moved (Detachable), that would be wonderful, but I imagine that's a lot of work that might not align with your vision for the project. Cheers.

Uh, and also, the options to show spellicon next to the castbar.

No, the castbar is working as i intend it to be. If you are not satisfied with it you can always turn it off and use something else.
Might do the spellicon in the future though.

Spell icon added.