@kosta20071 I appreciate your work. If possible keep this updated with new free themes as they come out.
I can try, but it is really easy for those who use CM12S and CM12.1 nightly with multi-rom.
When downloading a theme from the Themes Store app , the apks are stored in /data/data/.....ThemeStore/files/ .
So you need only to copy the apks somewhere and install them or share them here.
Alternatively, it's possible to extract from CM12S ROM (Calkulin's_Stock_OPO_YNG1TAS0YL_ROM_v1.0) :
/system/priv-app/AmbientCore/AmbientCore.apk
/system/priv-app/ThemeChooser/ThemeChooser.apk
/system/priv-app/ThemeStore/ThemeStore.apk
install the apps on your CM12.1 nightly or whatever , open Themes ( the one you installed becuase there are 2 Themes apps , one is the built-in and the second is the Themes Store ),then login with Cyanogen account , just like on CM12S and you will see the themes , you can download them and do what I mentioned above.