I noticed on Pillars of Gold I would always botch the wall-in vs zerg by placing the pylon 1 hex too close to the ramp, because the power radius is drawn with ~1/2 hex too short a radius. A correctly placed pylon shows the field being visibly too far away to wall the edge of the ramp, but it still works. Confusing.
I don’t remember it being like this , but since I’ve gotten a new computer my graphics settings are much higher. Does anyone know if there’s a setting that draws it properly?