No time to verify steps at the moment, Scott... but the various library parts that take images as parameters simply require that the image file be loaded by Library Manager - for example, in your project lib or company lib folder.
If you copy an image into such a folder, you have to reload libraries for AC to know that it is there.
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB