TL;DR Increase Roboport sprite size slightly. What ? The Roboport looks like it doesn't occupy its top-most tile. I'd like to suggest increasing the size of the Roboport sprite slightly. I think it would also benefit from being larger horizontally, so that it fully occupies its left and right-most ...

Ah, thanks! Just if anyone else finds this on Google, I missed this quote from the wiki article:

> Long range scanning is visible on the map as a single chunk lighting up for several seconds, then slowly darkening.

Does anyone know why random chunks might get revealed sometimes, and then disappear again after a few seconds? Is this some kind of effect of the Radar's long range survey scanning, or something else?