Double Subverted: They change their outfits almost instantly.
They all wear the same colour, with different accents - their outfits have no differences otherwise.
Characters are named after their colors, one of them does not even wear the color they are associated with, there is a character who is literally a physical blob of color, and their leader is the Invisible Pink Unicorn.
Zig Zagged: ???
Averted: They don't have any colour-coding system.
Enforced: The writers do this because the game is based on Power Rangers, of which the author is a fan.
Lampshaded: "Hey, that's Alice. I know by her..". "...feathers?" "... No, because she's wearing red".
Invoked: The heroes decide to dress in signiture colours so that they can spot each other easily in a big battle.