Is your feature request related to a problem? Please describe.

Describe the solution you'd like
glowing texture with a system like optifine would be nice to add
and of course texture in certain biomes like in optifine

i like the connected texture system in fusion because it can create special models to connect
so why not just adapt the glowing texture feature and the biome texture

glowing texture with a system like optifine would be nice to add

Fusion already allows for emissive textures, i.e. textures that always appear at a light level of 15, if that is what you mean.
https://github.com/SuperMartijn642/Fusion/wiki/Texture-Types#base-texture-properties

You can accomplish the same by overlaying an emissive texture onto a regular texture. The emissive ores example uses that approach https://github.com/SuperMartijn642/FusionExamples/tree/main/Emissive%20Diamond%20Ores
OptiFine uses shaders to apply the glow effect which is not feasible for Fusion as shaders require large changes to the game like what mods such as Iris do.

glowing texture with a system like optifine would be nice to add

Fusion already allows for emissive textures, i.e. textures that always appear at a light level of 15, if that is what you mean. https://github.com/SuperMartijn642/Fusion/wiki/Texture-Types#base-texture-properties

yeah i know that one
it's good
but it can't make only certain pixels glow