I edited the birch leaves to look more yello for *diversity*
If you want a better version with bushy leaves check out JermsyBoy's excellent texture pack,
and the Better Birch Leaves Addon!
Simply go to assets/minecraft/textures/block, and then delete birch_leaves.png and replace
with these for better compatablility!

Better leaves:
https://www.curseforge.com/minecraft/texture-packs/better-leaves-add-on-2-0
Better birch:
https://www.curseforge.com/minecraft/texture-packs/better-birch-leaves-add-on