Pokémon Shiny Action Replay Code - Specific Shiny Pokémon?

Action replay code - Specific shiny pokémon? - pokémon shiny

Hello, I have a repetition of the action, because we want a shiny Umbreon, I do not want shiny Pokemon. Only my Umbreon. I know there are codes for all wild and brilliant in all fields and bright, but I would just like a Pokemon.
Is this possible? Please send code if it is known for this.
Thanks in advance = D