Vibrant Sky

Plains, Forest, etc.

Default sky color

Desert

Slightly more aqua sky and fog color

Savanna

A golden grass color for Savanna's while not feeling too off from Vanilla

Cherry Grove

Mesa

Light aqua sky with an orange fog color

Jungle

Greenish fog for Jungle

Dark Forest

Slightly darker sky and fog

Swamp

Murky sky and fog

Mangrove Swamp 1

Mangrove Swamp 2

Frozen Ocean, Frozen River, Frozen Peaks, Windswept Hills, etc.

A bit more purpley for cold

Snowy Taiga, Snowy Beach

White sky for snowy biomes