First, great tool. I appreciate the time taken to create something that's usable in our industry without the complexity of AutoCAD.
Second, I apologize in advance if someone has already asked/suggested what I am about to, analyzing all of the existing comments is a little tricky.
Is there a way to hide the camera icons, and leave only the triangles?
Is there a way to change the camera colors from the original blue?
From a communication standpoint, both of these are huge. The icons easily get cluttered when working in small spaces or zooming out and you really only need the visual triangle to know there's a camera there.
The camera colors would allow for differentiation between groups, such as differing models, old vs new, etc.
I feel both of these concepts could be implemented and controlled very cleanly on a per camera basis from the "All cameras" Menu. There could be a toggle hide/show on each of the camera line items for its icon, plus a color palette link that could dictate camera color. Or the config could be in the setting section for each individual camera.
Regardless of the implementation method, I believe both ideas are worth considering.