Replaced the wood tiles with charcoal colored ones. Wood didn't look good mixed with the metal-like walls.
I've also changed the tile format for the levels. 1st digit is the tile type, while the 2nd digit is the tile that appears on screen. It broke compatibility with my level files, obviously, but it's worth it because now the tile maps are readable.
Also, the first level you see in this video was just some sample output generated from a procedural generated cave algorithm on the roguebasin wiki. I just converted it to my level format. It kind of looks without a cave tileset though.
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