Lava "oceans" should be considered their own biome and have an orange sky

Currently, lava "oceans" are somewhat misleading. They can be any biome, yet don't follow the rules of those biomes other than the sky colour and the particles as they're pretty open and empty. I think that lava oceans should have an orange sky to reflect the colour of the lava, along with flame particles and embers throughout the air. Obviously they would have to be toned down for visibility reasons.

Also, if there are concerns about what spawns here, I think that it should just spawn magma cubes and striders (until a new lava mob is added in the future). There is no terrain, so there is no point of adding special mob spawns.