
Extract skins you like to a "Diva.data\Support\Themes" directory,

mine is "C:\Program Files (x86)\Vstplugins\u-he\Diva.data\Support\Themes"

your maybe different.

For example, if you extract "Divassic park with a dinosaur" skin to Themes directory, path should look like this "Diva.data\Support\Themes\Divassic park with a dinosaur"

:)