Previously you had to pick a colour to use as the border for pictures that don’t quite fill the screen. Now JBS can make that choice for you based on the main colours in the actual picture. It’s on by default but you can choose your own in the main settings dialog.
John's Background Switcher
Change your Windows desktop periodically with pictures or montages from your machine or places like Flickr, smugmug and Facebook (among others).
John's Image Converter
A simple Windows utility to resize and/or convert pictures, folders of pictures or create cool montage effects.