Metal/Radioactive Extractors too small

Just started playing, it's a great game so far, it's alot of fun.

One major piece of feedback I'd like to give is that it's difficult to tell when I've got my Extractors/Radioactive/Amplifiers built on the correct nodes, and which node is which.  Especially during the course of a protracted game with multiple battle fronts, it becomes painful to manage if the metal extracts are present, as the actual visual for the building is quite small, especially on a higher zoom.  I generally find myself playing all the way zoomed out, so the very small building in the center of the node is quite difficult to find for Syndicate, and would benefit from being easily read, or have icons on the map.

Thanks,

Gerrick