Supplemental Patches enables users to create custom shaders for modded blocks, entities, items, particles, etc, through a resource-pack, with the shaders being patched onto Euphoria Patches.
Trailier Tales
Wetland Whimsy
Savage & Ravage
Pearfection
Doom & Gloom
Upgrade Aquatic
Quark
Galosphere
YUNG's Cave Biomes
Frostiful
Endergetic Expansion
Soulful Nether
Jaden's Nether Expansion
Pigsteel
My Nether's Delight
Biomes O Plenty
Custom skybox for Enderscape, with many options for customization
Enderscape
Enhanced Celestials
Species
Cinderscapes
Doom and Gloom