Requesting the ability to group wallpapers into albums to make it easier for the user to find/select the wallpapers they want according to a certain theme or to personal preferences.

For example, the default album will be “All” displaying all of the available wallpapers that the user has added – which is the current behaviour.

But then the user can make a new album called “Anime” or “Nature” or “Work” for example and then select multiple wallpapers from “All” and add the relevant themed wallpapers to each album.

The interface for creating/managing these albums can look similar to the way folder management is presented in the "Slideshow" plugin.

This album style of organising wallpapers could also be used for the slideshow wallpaper plugin or even possibly this could allow the "Image" and the "Slideshow" plugins to be merged since user created albums could potentially address all usecase scenarios at once.

I also recommend allowing the user to select/deselect all images in any album and to sort them by filename or by date they were added as a wallpaper. (so that you can easily find the most recently added wallpapers and generally manage things easier)