As per a recent user's request, I have added a feature that allows fullscreen mode as well as an Open button which allows the user to open the image file directly for inspection. Please redownload the app for changes to take affect!
As per a user's request, a yellow shortcut button has been added to the top-right corner. Once both a trash folder and a photo folder are selected, it allows you to assign any keyboard key as a Delete or Keep shortcut.
Please delete and redownload the .exe for the changes to take effect.