Birch and spruce leaves color change depending on the biome

Summary:
When the Caves and Cliffs toggle is enabled, the color of birch and spruce leaves change depending on the biome they are in.

Steps to Reproduce:

1. Create a new world with the Caves and Cliffs toggle enabled
2. Grow birch and spruce trees in different biomes

Observed Results:
The color of birch and spruce leaves change depending on the biome they are in.

Expected Results:
The color of birch and spruce leaves remain the same in all biomes.

Screenshots: