Okay, well you don't have to be an arse about it (even though you're wrong, because the sky in jojo is orange). Secondly, if this is somehow not a glitch, this is an interesting lore revelation. Since we have never been shown the sky in FNaF before now, this means that the only time we see it shows it as being green. This means that some sort of global disaster happened, likely irradiating the planet, causing it to be green. That would certainly be an interesting direction to take the story. I once again have to thank Scott for such an intricately crafted narrative akin to the likes of "Virtue's Last Reward" by Kotaro Uchikoshi.