New Cave "Background" / Pondering Systems

Here's what I made for a "cave wallpaper" of sorts, it's very similar to that of the 'wooden wallpaper' where I just grabbed the texture and make it darker than it normally is. I plan on all player-made wallpapers to be very similar to this.

I also plan on trying out a Terraria-esque background if you lack a wallpaper there, I think it'd be an amazing addition but I would definitely need to get some sleep on pixel art / vector art to even get started on that stuff.

Here's the hard-coded caves using the background, I would love if I could get another tilemap working on top of the other but that'll take me awhile after redoing most of the code I have in there already.