Add Pause the video

[Stamimail]

When clicking on
"Pause / Resume image (Ctrl+P)"
the screen goes black.
I will prefer to pause the the slideshow like I pause a video in media player.
Consider also to use the common key to pause the images slideshow, and arrow keys to navigate preivous/next images.

Another suggestion is to use something like
shift+arrows/space - to control images
ctrl+arrows/space - to control music
ctrl+shift+arrows/space - to control both images and music at once.