When using debt-related pictures, there are currently only two options: either the image associated with the individual debt/credit is shown, or the one associated with the debt category.
I am generally ok with using the debt category image, but there are some cases, where I would like to override that with a specific picture for an individual debt/credit item.
So in addition to the two options for debt-related pictures, I would like to have a third one: use the debt/credit image if one exists, otherwise use the debt category image. That would allow me to override the image for individual debt/credit items in those special situations.
