Hi,
in Times of Surface, Macbook ..., where the number of mobile devices with touch support increases fast, it would be great to have an optimized UI for this devices. Maybe optional to switch between different workspaces. This should include bigger buttons/Menues, touch gestures (because without a keyboard shortcuts are useless), another way of browsing folders, optimized Dialogues ... ...
When sitting late in the evening on my couch/sofa it is possible to swipe to the next/last picture, but rating with stars or colours is not this easy, as it should be. This could be flying menues with stars and colours.
A good example for this is FastPictureViewer. Looking the videos on it's page.
https://www.fastpictureviewer.com/help/I think many users could have great benefits in theyre daily workflow.