swapping sprites in unity. unity doesn't support SVG sprite sheets yet so this is a decent work around for animating

SpriteSwap.cs

//useful for multiple sprites that cannot be put into a sheet
//unity current does not support slicing sheets for SVG import so this allows you to take multiple SVGs and animate them in editor
//based on an script from Anima2D

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[ExecuteInEditMode]
public class SpriteSwap : MonoBehaviour
{

    public SpriteRenderer m_rend;
	public SpriteRenderer cachedSpriteRenderer{
		get{
			if(!m_rend){
				m_rend = GetComponent<SpriteRenderer>();
			}
			return m_rend;
		}
	}
    [SerializeField]
    int m_Frame = 0;

	int m_OldFrame = 0;

    [SerializeField]
    public Sprite[] m_Frames;

    public Sprite[] frames
    {
        get
        {
            return m_Frames;
        }
        set
        {
            m_Frames = value;
        }
    }
    public int frame
    {
        get
        {
            return (int)m_Frame;
        }
        set
        {
            m_Frame = value;
        }
    }

	void LateUpdate()
	{
		if(m_OldFrame != frame && 
		m_Frames != null &&
		m_Frames.Length > 0 && m_Frames.Length > frame && cachedSpriteRenderer){
			m_OldFrame = frame;
			cachedSpriteRenderer.sprite = m_Frames[frame];
		}
		
	}

}