Can't locate any yet. Contacted two mod creators requesting them. Y'all should be monopolizing this jazz. Just saying. -sips-
I actually started working on a spooky stone cabin retexture in purple and black, but since I'm not great at pixel art it's mostly a recolor.
Do you mean exterior building textures? Because there are several up on Nexus. Check out Eemiestardew's: https://www.nexusmods.com/stardewvalley/users/34984615?tab=user+files I use her Seasonal Victorian Buildings and Flowers. The detail's great, and she has a real gift for color shading, in my opinion. There are others available up there, as well. Enjoy!
I did check Nexus and the mod forums periodically since the update up to posting this forum but could not find any texture mods that address the cabins for the 1.3 multiplayer update. From what I can see on funky mobile, these posts predate the update and would not have cabins. Do you know of any?
How about Elle's Seasonal Buildings? She does some of my absolute favorite cosmetic mods for Stardew Valley. I never play without them. https://www.nexusmods.com/stardewvalley/mods/1993