Avoid black-on-black display of black-on-transparency images
A (relatively) common type of image is a diagram, rendered with mostly black lines and frames, and black text, over a transparent background (in an image format which supports transparency, like PNG).
At the same time, Eye of GOME defaults (at least on my distribution) to a black background on which images are rendered, so that the kind of diagrams I described above end up as black-on-black - invisible except for diagram objects with explicit fill, or non-black text.
Eye of GNOME should, optionally or by default, apply some kind of heuristic of detecting these cases, and possibly choosing a different background (white? gray? checkered?) - especially since it is not easy/not possible to change the background color manually.
Using Eye of GNOME 3.28.4 with the Cinnamon Desktop Environment, on Devuan GNU/Linux beowulf.