What image is referenced by my Image Indicator

I have an image indicator gadget where 5 different images are providing a background based on the mode of the system. The differences in the images are minor so when they appear in the properties view in build mode they all look the same.
If I pick one of the 5 image entries in the gadget, then click ‘select image’ I get to choose from all the images in the image library. But I can’t tell which image is the currently selected image. I was thinking the selected image might show up with a thick border, or possibly the filename of the image somewhere.
Is there a way to know and I’m just not seeing it?

No, you’re not missing anything. That’s something I should fix.