Ok, hear me out, I have a terrestrial planet that has mostly a thick atmosphere. The clouds absorb most of the sunlight, therefore barely anything gets through (similar to Venus). There are, however, certain "spots" or "safe zones", so to say, that are habitable for people to live in. There are three total, and each is different from one another. The southernmost is a cold desert similar to Mars, the middle safezone is most like a jungle, and the northernmost area has snow, ice and some tundra. Simple concept so far. Another thing I wanted to apply, was the color of the sky and the sun. Each safe zone has skies of various colors, rather than one consistent. The northernmost has a yellow/white sun with a violet sky, the middle a violet/blue sun with yellow/orange skies, and the south a red sun with green skies (dust kicking up to alter the sky color). Now, I looked up the color of stars and their temperatures, and how they would apply to our eyes. I know violet and green stars cannot be seen because of how we see color, but I was wondering if there could be some sort of organic/natural filter in the atmosphere that changes the color to those inhabiting the planet? Dust, vug, algae? I know in space the sun appears white, while here on earth its a orange/yellow hue. Lastly, I'm wondering if these stars should be in a trinary star system, or if it could be three small neutron stars rotating around one planet? Or maybe it's just one star and the chemicals somehow affect the sky/sun color? My concern is that the neutron stars and their strong gravitational fields would tear the planet apart, and that the trinary star system seems overly complex. Though I'm willing to figure it out, it'd be difficult for various locations on the planet to have a sun particular to that region. I don't think it's possible. Probably going to go with one star with the atmosphere having various impurities altering its color. I just don't know if its feasible in a realistic sense. Any advice would be great. Perhaps I'm overthinking it, but I've been overthinking it for months now. I need help on what to do, with sound scientific research and a bit of elbow room for creativity. I already have a solid idea/theory on what I want it to be, but before I proceed, I'd like some advice. Thanks!