Custom themes are still useable. It is not possible to retain the current theme while switching the 3DS folders. You'll need to apply the theme on each new one.
Well it looks like 3dsbank just decided to not want to switch folders even though it shows I selected slot 0
Well if I have too many titles, I'd like to move the extra ones to a different "Nintendo 3DS" folder. I thought the app would do that automatically, but I guess that's on me.
You can't just move titles from one Nintendo 3DS folder to another, all 3dsbank does (afaik) is just make new 3ds folders for you, and switch between them. Too many games? Backup your saves for the ones you wish to "move" to another folder, and delete them via system settings. Re-install them on the folder that you want them to be in.
