Hey! Thanks a lot :)
To do that, overlay the "broken tiled floor" tiles onto the "cave floor" tiles. You can do that directly in your engine (if it supports multiple tile layers) or, alternatively, in an image editor like Aseprite (the best software option if you take this route), Photoshop, or similar, before using it in the engine.
I hope it helps!































































































You made me lose some working time today xD