Missing icons in Node Editor

Support Basics & Interface
1

Good night to all. I’ve tried to find the answer in Blender Manual and google search but had no luck.
I see these icons in a lot of tutorials but my Blender 2.78c does not have them. What are they?
Thank you! :slight_smile:

2

These require addons such as:

3

Ahhh, ok! :slight_smile:
Thank you