Remove both gravel and sleepers from rails or keep the sleepers. Re-creation of the mod with the same name from Factorio 1.x.
Small changes concerning balance, gameplay, or graphics.
Trains are great, but what if they could do even more?
Are you ever going to add support for Ramps and Elevated Rails? Im not even sure if its technically possible as it seems that the balast and sleepers are actually included in the sprites which isn't the same as for normal rail pieces.