[DaVu]

btw it would be far better and more relevant here if one could easily switch skins within the GUI, but most people will never find a need for that or will do so even if they happen to know that a specific skin supports this feature, that there are other skins and how/where to switch skins in the GUI

Last answer in that regard from my side...

Navigate to: Settings -> Interface -> Skin and hit "Enter" on the line which mentions the "Estuary" skin. 

On the upcoming dialog you are able to switch already installed skins or install new ones by selecting the Get more button. After you selected "Get more" you will see a list of available skins in our repo

So switching skins is easily done via our GUI.

Maybe I got you wrong. If not, you should make yourself probably a bit more familiar with Kodi