Before long, someone is going to go to the trouble of decking out their guitar with fairy lights as a response to thread titles about lights!
Although I've presently got uncoated mediums on my GSmini, I put a set of Elixir pb lights on a few months back and they sounded great. My next set will probably be 80-20 nano lights.
Even though official advice on the GSmini is that mediums work best with the scale length, the lights also sound very good. I seem to recall Bob T being asked somewhere if it would be a problem switching to lights on a 100 series guitar, and his answer was that the guitar will still sound great, it'd just lose a bit of volume and have more of an intimate sound. My experience on the GSmini is just the same. In fact sometimes the intimate sound is a bonus, for instance if you're using it as a travel guitar and playing late night in your hotel room etc.
