Issue description
Since update 3 small patches of coal have become indistinct from the rock bed, meaning alot of rock is being unessesarily in order to get all the coal.
Two possible solutions:
Make the tiny dots of coal slightly larger so they are obvious and clearly stand out.
remove all black from the rock bed texture.
Reproduction steps
Mine some coal.
Look at the screen.
Game version and build number
v0.7.9 b495
Operating system
Windows