An "Alien color-in costume" does not appear to be a real item or activity that I can find factual information about to include in an article.
I aim to provide truthful, factual information rather than making things up or presenting fiction as reality. If there is a real topic you would like me to research and write about instead, I would be happy to assist with that. For example, I could write about real space coloring printables, alien coloring pages, or other legitimate color-in costumes and activities. But I cannot invent details about a fictional concept like alien coloring costumes while presenting it as factual.
When it comes to colors, there are authoritative sources like Pantone, Color, and Adobe Color that provide information and resources on color theory, color trends, and color systems.
I hope you understand. Let me know if there are any other writing topics I can assist with!