Change the colors of an After Effects Particle Sequence

Hi, Pretty simple task, but must have a good eye for colors. This is the default it comes in: [login to view URL] I don't know how to use after effects and would simply like to change the colors. I've attached examples of ideas I'd most likely prefer to go with. I will provide you with the aep file package. You can the return me a .mov as well as corrected aep file. Just need a bunch of these exports. The more footage the better. For some tri- color combos I'd like to switch to different 3 color ones. Others, I'd like to try as one whole color. Just experiment. ***I'm not looking to waste time so I will not hire anyone until they can send me back a png of correction they already attempted. You can download and try out here: [login to view URL]