I am trying out Particles systems within Blender 2.79. When I have an object emitting particles I can easily see them but when adding a second force and playing with the scene the particles are black on my screen on a dark gray background making it hard to see. I am not looking to render the particles a different color but be able to display them on the screen a different color than black, any help even a link to someone else answering this question would be great.
You may want to look into the display options in your particle system. This can help diagnose issues as well as get a better idea of the behavior of your emitter.
Here is an example of color by velocity.