You can retrieve a reference to a shipped VLF-ONE image in by using method #avFrameworkManager. avGetImageReference.
For example the shipped People instance list panel handler DF_T40PAO displays each employee like this:
It uses this code to get themed and sized references to the circled mail and phone images:
#AVFRAMEWORKMANAGER.avGetImageReference Filename(phone_outline.png)
Bitmap(#Image1.Image) Size(Small) Source(T)
#AVFRAMEWORKMANAGER.avGetImageReference Filename(mail_outline.png)
Bitmap(#Image2.Image) Size(Small) Source(T)
Explore folder <<partition directory>>\web\vl\VLFONE\Images\Blue\Large to see the set of shipped images.
Also see Get an Image from a File