[drinfernoo]

I'm getting an error when trying to install the skin on Kodi Matrix (OSMC):
ERROR <general>: CAddonInstallJob[skin.arctic.horizon]: failed to find dependency resource.images.studios.coloured

There is a known issue with the pre-release builds of Matrix on OSMC that is causing an issue. Basically something installed from a third party repository that includes dependencies that are in the main Kodi repo fail. To get around that, you need to install all the dependencies first and then install the skin.

That would likely preclude almost any third party add-on from installing...