This is the first Developer Preview of Simplified Textures 1.21.0, and will add new textures and changes!

•All types of logs and woods are now simplified.
•All types of stripped logs and woods are now simplified.
•Azalea Leaves and Flowering Azalea Leaves are now reverted to their previous design.
•Oak Leaves, Spruce Leaves, Birch Leaves, Jungle Leaves, Acacia Leaves, and Dark Oak Leaves are now simplified.
•Saplings are now simplified.
•Grass and Tall Grass are now simplified.
•Flowers are now simplified.

•Bucket of Tropical Fish is now modified to match the other bucket variants.
•Netherite tools and weapons are now tweaked to match the Vanilla style.
•Blast Furnace is changed again.