Refinements adds small little features that together improve the experience but in a very vanilla way.
Features:
- Biome-colored items - the vanilla blocks like leaves and grass that are normally are colored per-biome now have biome-colored items too
- Roses and Peonies can be placed in flower pots
- Skeletons with crossbows in their hands will know how to use them! (Refinements does not currently let Skeletons spawn with crossbows)