After reading the API info here: https://docs.unity3d.com/ScriptReference/TrailRenderer-colorGradient.html
I am wondering if I can "tune in" my trail renderer in the normal unity interface, print those complicated code parameters, then use that code in my script to change color on triggers, etc.
To clarify, how do I get the information here presented in code: 
I guess I am approaching this from a CSS background. Is there a Unity colorgradient version of this website: https://www.colorzilla.com/gradient-editor/
Can I make the script print the characteristics of the trail renderer (for the purpose of replicating it elsewhere in my code)?
Much appreciate the help!