It's just my way to do or what i found on forums

If you have a better or easier way to do it, i will very enjoy to know it ;)

1 - I have some difficult to do material with sprite, and i found an answer (thanks to the forum)

2 - So, create a new Material

3 - In the Inspector (Material), drap & drop the sprite you want in the Albedo window

4 - Then, change the Shader with : Sprites > Default

5 - Now you have a Material Sprite

- Differences between Standard & Sprites/Default (Shader)

6 - You can drag & drop the Material in a Particle System : Renderer > Material