I made a Blender File where I'm trying to emit "cold sparks" from a simple sphere. I created a sphere over a plane with a collision physics simulation on the plane. I put a particle system on the emitter sphere and set the render settings to "Collection" and selected "Embers" which contained my sparks objects. It looks like this:

I made the material for each ember a glowing yellow/organge that darkens with time.

But the embers that are emitted from the emitter sphere don't present with this glowing orange-ish material. They appear to not render AT ALL against the green plane (which is weird), and when visible, the embers present with the default white-ish material:

I've attached my Blender file here. Can anyone get my particles to render with the correct material?
https://drive.google.com/file/d/14QQORIjSUqULWfylQlkZmZ_T7RR-xNhM/view?usp=sharing

I made a Blender File where I'm trying to emit "cold sparks" from a simple sphere. I created a sphere over a plane with a collision physics simulation on the plane. I put a particle system on the emitter sphere and set the render settings to "Collection" and selected "Embers" which contained my sparks objects. It looks like this:

I made the material for each ember a glowing yellow/organge that darkens with time.

But the embers that are emitted from the emitter sphere don't present with this glowing orange-ish material. They appear to not render AT ALL against the green plane (which is weird), and when visible, the embers present with the default white-ish material:

Can anyone show me how to get my particles to render with the correct material?