I just found these skins and they are all beautiful & functional!

Ableton Live 10 Skin Download
Ableton Live Skin Downloads Torrent

Head on over to SonicBloom.net to find these skins and more like them! You will need to register to use the site, but beyond that one step downloading anything is just one click.

The Ableton Dark skin started out as a Serum skin, which you can download here. Over 6,000 producers like yourself have downloaded the skin to date. So when Vital Audio dropped an update for Vital allowing users to create custom skins, we knew we had to make one. The Ableton Dark Vital skin was inspired by Ableton 10 dark mode and the synth.

5 Dark Ableton Live Skins for Free (#7) If you're up for some new skins for Ableton Live, I've got 5 new ones you might like. They're all mid to dark, often greys or off-greys with bits of colour. The skins are optimised for Live 9, but will work in previous versions as well. Download the free 'Ableton Live Skins 7'.
Fresh themes for Ableton 10 with the ability to customise them yourself!