Editor Interface

Question 1

You can use [HideInInspector] to set public class variables in the inspector and remove clutter.
You can also use [SerializeField] to make private variables appear in the inspector

Answer 1

You do this so you can uphold proper access modifiers while making design changes.

Question 2

You can sort Sprites based on thier Y value by going to Project Settings, Graphics, Camera Settings, and set Transparency Sort Mode to Custom Axis, then set the Y value to 1

Answer 2

True