OptiFine 1.21.1_HD_K_J3_pre13
 - fixed custom colormaps sp614x/7676
 - fixed screen flickering
 - not working
   - shaders
   - emissive textures
   - fast render
   - anti aliasing / anisotropic filtering
 - updated to 1.21.1
 - not compatible with forge
(14.08.2024)
