In the images listbox on the right side, I can click on any of the images, and it will show in the window.
But while I can navigate through this list with my arrow up and down keys, the selected images don't show up.
It would be quite helpful to connect arrow key navigation to the preview of the images in the listbox, as this helps in quick screening of larger image datasets (e.g. to check if you forgot to annotate one or more images).