Because not all models have their shiny variants, I feel that it's entirely possible to defeat or run away from a shiny Pokémon on accident.
So maybe to the side of the Poké Ball symbol that indicates whether you caught it or not, there should be a star (identical to the one on the Summary screen of shinies).
So maybe to the side of the Poké Ball symbol that indicates whether you caught it or not, there should be a star (identical to the one on the Summary screen of shinies).