I can't solve the space issue as I suspect it is buried well into the guts of the whole ODS structure code.
However, the only reason I could come up with for the requirement with the comma involves your "image" looking like text.
If you would share the image, click on the Photos Icon and navigate to an example, it might be possible to create text that looks like your image with text decoration options. Maybe.
Or possibly edit the image to make a copy with the appropriate size comma as part of the image.