Crafting guide for furnace fuels is misleading

[Wuzzy2]

The crafting guide for fuels is misleading. The problem is that it looks exactly like an ordinary crafting recipe, when it fact is only for fuel which is a difference.

I initially thought I have to combine a furnace and dirt in the crafting grid, but I figured it out later. The crafting guide makes no difference between furnace fuels and actual recipes, so I think it could be improved.