Add Icon to Node Menu（Geometry、Shader、Compositing Nodes）

For top level categories it could be done, we even have most icons that would go there I think.

I wouldn't have a specific icon for each node though. Main reasons:

1. Overwhelming . Too many icons become hard to read and start to lose meaning.
2. Hard to maintain . This would add hundreds of new icons.
3. Overhead when adding new nodes. Every time a new node is added, it would mean having to design a new icon. Some nodes are quite abstract/low level, hard to picture every idea.
4. Will make built-in/community node group assets look less integrated since they won't have icons.

I don't like your design! but I like your idea)

I like this idea, I was considering working on something like this as an alternative menu, but I've never taken the time to get skilled at making icons, so they wouldn't really be up to the standards of the project

it could be put into colored groups and organized better, but icons for every name is a bit much.

when there are more nodes will be added，it is a highly requirement that icon makes Menu Item more Clear to Find the proper one