The image is it’s own layer with an alpha channel. YOu can change the image color by adding a number of different color effects, like fill, hue/saturation, tint.
Understanding layers and alpha channels is key in using AE. I’m assuming you are pretty new to AE, so I suggest you check out the links that are mentioned in this thread. Provides links to a lot of basic training for AE. https://forums.creativecow.net/thread/202/900520
Johnny Cuevas, Editor
Thinkck.com
“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb.