Are there any tutorials about replace sprites

[OrangePk]

Im new, try to make a client mod that replace all foods icons or sprites.i think its a simple mod,but i dont konw anything about how to make it 

[Leonidas IV]

The easy way is to simply replace the original file (you must put it the same way it is in the game files, same folder and file names), so when the game loads your mod, it will overwrite the sprites.

Or, you can change the image/anim set in the prefab code