using particles to display an image

I hope I’m wording this the right way. I would like to make the particle system look similar to the sphere on the right. I’m thinking I need to make a material that colors the particles based on the world location but I don’t know how to do that or if it’s even in the right direction. If you know of any links or tutorials I’d really appreciate it.
4729537ef99d636ed12c55a7a01ae0d269776b26.jpeg

Thanks
Sanford