Who’s in charge of the sky tinting?

The base color of the sky seems to be a bright, light, blue; this blue is the default color of the sky-light. At times when the sky is grey, pink, orange, or even black, it appears that something or someone is tinting the default blue color to display different colors and shades throughout the available spectrum. I also wonder if it’s on a timer or if it somehow reacts or interacts with the weather people.

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