It is a very simple program that allows you to have a quick overview of the contents of some files.
The program requires some python libraries and I have made a list of those needed for some distributions. they are generally always the same, just the names change a little.
Video: https://www.youtube.com/watch?v=AB1SRV1ldnw
Github: https://github.com/Nyre221/dolphin-quick-view
Download: https://www.pling.com/p/2083711/
It’s much faster than opening an application. Extremely lightweight and keyboard operable. Insanely intuitive.
Select item. Hit space bar. Use arrow keys to view next or previous item. Hit space bar again to close it.
You should test out Apple’s Finder. It’s packed with features like this that save hours of people’s time every month