so i tried to import my poolroom map that a did in Unity 2020.3 into Unity 5 (spoiler : it is a pain).
And you may noticed that the light are not accurate at all and you can only blame Unity 5 for that because their technology, back in the day, where very wonky, in fact i spent a whole afternoon just on the lightning settings (and trust me, this is the best Unity can do).
Anyway, i will maybe publish the mod when it is in better shape, but for now, it is what it is i guess...