Introduction to Tags & Layers Manager

Notes:

Unity Tags & Layers Manager Introduction:
The Tags and Layers Manager allows us to set up Tags, Layers and Sorting Layers for game objects.

Viewing Tags & Layers Manager:
Edit - Project Settings - Tags and Layers.
OR
Select a game object - Inspector Window - click on the Tag drop down menu - Say Add tag...
OR
Select a game object - Inspector Window - click on the Layer drop down menu - Say Add Layer...
OR
Layers dropdown in tool bar - Edit Layers...
OR
Drag an image - Select the image - Texture type - Sprite (2D and UI) - Drag image to scene -
Select image game object - click on the Sorting Layer drop down menu in the sprite renderer component - Say Add Sorting Layer...