I, for one, do like it. I usually prefer lighter themes, but this one would be more than ok for me.
replyCool ! It's fully open source. Quite a complex TS style https://codeberg.org/cartes/web/src/branch/master/app/styles...
replyAnd its Tilemaker profile to generate the tiles : https://codeberg.org/cartes/serveur/src/branch/master/tilema...