https://mods.factorio.com/mod/lignumis
And
https://mods.factorio.com/mod/AdvancedBeltsSA

Extra request: The belts from Advanced Belts SA uses the non turbo belt arrow gap, would be nice if you could also fix this in the reskin if possible to use larger gaps :)

I'll see what I can do :)
For the advanced belts, I can't use the turbo belt animation if the prototype doesn't use the same animation logic, so we'll see

Lignumis belt support has been added, but underground and splitters don't work right... I've contacted the mod author for help.
Same with Advanced Belts :/ Additionally, I can't use the turbo belt animation yet. I'll look into it later.

Adding Lignumis support made me want to add Castra as well, and it's working alright.
Will release soon :)

Hope it works out! Thanks :)

Alright!
-Advanced Belts compat added
-Lignumis compat added
-Castra compat added (as a treat)

Thanks again!