A photo slideshow background is visible when a picture (or pictures) does not cover the available space completely. Endless Slideshow Screensaver offers several picture resize methods and some of them leave parts of the background visible if a picture does not match the size of the available space (a monitor or a slideshow zone) perfectly. Here is a short video showing some of the background types available in Endless Slideshow Screensaver:
Selecting a background for your photo slideshow in Endless Slideshow Screensaver is very easy - open Endless Slideshow Screensaver settings and select the [ Slideshow ] tab, [ Zone background ] section:
By default, Endless Slideshow Screensaver uses a [ Solid color ] background type and you can select a different color by clicking your mouse on the [ Background color ] section.
The [ Gradient ] background type allows you to select 2 different colors along with the gradient direction (vertical or horizontal) to create a color gradient background:
[ Dominant color ] and [ Average color ] background types use the currently shown picture to calculate a dynamic background color - it will be different for every photo, unlike the above background types which stay the same for every picture.
The [ Static picture ] background type allows you to select an image file from your local or network drive and use it as a static background wallpaper for the slideshow. You can choose how this picture fits inside the slideshow zone using one of the options of the [ Style ] drop-down list. If you select the [ Center ] option and the background picture does not fit the slideshow zone size perfectly, then the color selected as the [ Background color ] will be used to fill uncovered background areas. Other [ Style ] options will cover the slideshow background completely.
The [ Currently shown picture, stretched and blurred ] option will use the currently shown photo as a background. Endless Slideshow Screensaver will apply the selected level of [ Blur ], then adjust the [ Gamma ] by the selected value and finally use the selected style to fill the slideshow zone background with the resulting picture completely.
The [ Previous slide ] background type will create a beautiful "pile" of your photos after a dozen slides. In this mode, Endless Slideshow Screensaver will use the previous slide as a background for the next slide. This mode runs especially well when paired with the random photo positioning (available in the [ Media files positioning ] section of the [ Slideshow ] tab) and random angle photo rotation (available in the [ Picture rotation ] section of the [ Viewer ] tab).