Trainers who consistently play Pokemon Go are no doubt used to Niantic's system of casually releasing shiny variants of different Pokemon into the mobile game gradually as time goes on, with little warning prior to the availability of said Pokemon.
This time, Niantic, in celebration of Ingress Prime, is releasing shiny Ponyta, the fire-horse, and shiny Cubone. Ponyta and Rapidash take on blue flames, while Cubone and Marowak adopt a greenish hue.
As part of the event, Trainers are also entitled to free clothing items from the in-game shop which bare the Ingress Prime logo. There are three different shirts, all black, but one has a white logo, one has a green logo, and one has a blue logo. It has been rumored that Rapidash and Marowak were chosen to match Ingress Prime's color scheme, though unconfirmed.
So, Trainers, which of these two shiny variants are you more interested in capturing? Get out there and catch 'em all!