Please let us change a SpriteRenderer's sprite at runtime in the future.

Unity Engine
1

I just had to create 45 1-frame animations and use an Animator with an entire state machine in order to create an object that can have variable sprites at runtime.

This is extremely wasteful.

2

Uhm… can’t you just do:

public Sprite otherSprite;

public void ChangeSprite()
{
    gameObject.GetComponent<SpriteRenderer>().sprite = otherSprite;
}