Makes excess solid fuel useful and easier to dispose of.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
In my factorio log I'm seeing:
Warning! Sprite at {0,0; 128x128} from __solidfuel_disposal__/graphics/solid-dispose.png is defined with 4 mipmap levels, but level 1 is expected to be at {128,0; 64x64} which is out of bounds of the source image.
Should've been fixed in the last update.