Adopting a theme for a client, I have introduced a new section to the theme.
Everything is working as expected, but in the list of used sections of the theme customisation editor, there is shown a small version of an image selected in the settings to be used in the frontend, instead of an icon like the other sections and blocks. Take a look at the screenshot below. It’s the “Images List for product”.
I tried to figure out how the icons are selected, but couldn’t find something in the documentation or the theme. Obviously I am blind. 
Thanks for your help.
Regards,
Andreas
