How to reveal type of material nodes in 2.8 I'm having a hard time trying to figure out, which types of nodes were used in the creation of a shader/material in the node editor. I did download a Blend file from the web and was curious to analyze the shaders and nodes, but when I open the Node Editor I can only see the custom names of most nodes, and not their "type", which I would need to reconstruct and explore.
For example: I got a , which outputs a Factor and has a Texture, Thickness and Indentation. But I cant really figure out, which node this actually is.
Any help would be much appreciated!
This seems to be a Node Group.
It is not a node by itself - rather a kind of a directory/folder.  

It contains a node tree, with different inputs and outputs.
To enter or leave it press ⇥ Tab or the little top right arrow  

Inside of a node group.


It is used to organize complex node trees, or sharing node trees across materials.
You can also rename your group, or the nodes inside of it - so it's easier to navigate.

Further reading:
Node Groups Page in Blender Manual