>>44838365The typings are done deliberately to hint at some connection to the terror alert system and colors associated with weather.
Purple is a more severe color than Blue, and Galarian Articuno is colored purple with a visor over its eyes. It has a Psychic-type move that can freeze, and it has a much better Ability in Competitive. Galarian Zapdos is Orange because Fighting is associated with brown, which is a dark shade of orange. Yellow is caution; orange is extreme caution. Galarian Zapdos has Defiant and a Fighting-type move that can lower Defense. Galarian Moltres is black because it is a far more dangerous color than red. Black is death; red is danger. Dark-type is associated with the color black. In any case, the Pokemon are far more dangerous than ever before. Light blue (Ice) -> Light purple (Psychic). Yellow (Electric) -> Dark orange/brown (Fighting). Fire (Red) -> Dark (Black).