Starfighter Skins
The clones have tons of alternate skins. Now the droids have some as well. I propose alternate skins for Rebel starfighters. It would be very easy to implement too, as all it would involve would be changing the color of the stripes.
X Wings could get Rogue One's Blue Squadron or Rebel's Green Squadron.
A Wings have appeared in other sources with blue or green markings as well.
At least one of the Y Wing models used in filming Return of the Jedi had red markings, and Green Squadron has some Y Wings in Rebels.
Easy to implement, and gives us something to spend our credits and crystals on.
