Factorio Forums

Right now, it is unknowable what the icon parameter does for the BurnerUsagePrototype, without looking in the base game files for an answer. When I first saw it, I presumed it was the yellow icon that appears next to the energy source tooltip - but it's actually the virtual signal
A small description saying "The icon used for when the entity is out of fuel" or something along those lines, would be massively helpful.