Alternatively, you could purchase (credits or cc) different blaster bolt colors, which would help for the 2-gun ships like the StarGuard and the Rycer.
You have to shoot the gun to see that. Given that the guns all shoot differently, I imagine that with or without custom colors that will be obvious.
The missile firing arcs are very different on the Pike/Quell.
No, this is not true. The arc for concussion, EMP, and ion are all identical at 20 degrees. It is impossible to tell without actually knowing the icon, which is why it is the most frustrating.
The ion railgun is a little box. The slug railgun is a straight line. The plasma railgun... well, tell me what that looks like maybe.