My wife's screensaver looks for photos on her drive and puts them on the screen, each for 10 or 15 seconds. She's found several photos she'd forgotten and real

My wife's screensaver looks for photos on her drive and puts them on the screen, each for 10 or 15 seconds. She's found several photos she'd forgotten and realised she wanted in this way. Very useful - could be made more "intelligent" about it all.