Do both Solgaleo and Necrozma have to be shiny for Necrozma Dusk Mane's full body to be shiny?

Question

Do Solgaleo and Necrozma both have to be shiny for Dusk Mane Necrozma to have the pink and blue coloring found in the shiny dex?

Edit: Clarification: I know both Necrozma and Solgaleo cannot legitimately be obtained shiny. This is a question out of curiosity.

Comments

I think this concerns Necrozma's shininess, not its counterparts.

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A shiny Necrozma can't be obtained legitimately, so are you asking what would happen if you hacked a shiny Necrozma into your game?

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Yes, I guess it's more of a question  for the hackers/exploiters out of my curiosity. I've seen a few shiny Solgaleos in link trade and I know they're hacked, solgaleo/lunala and cosmog are shiny locked sadly.

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Shiny solgaleo and Shiny Lunala are event pokemon.

Answer 1

Only Necrozma needs to be shiny. Sogaleo and Lunala's shininess (or lack thereof) has no effect on Necrozma's coloration after fusing.

Comments

He's right, you can try it out by using a shiny Kyurem and either Reshiram or Zecrom.