"The Wallpaper Master main window allows you to change your wallpaper at whatever interval you specify and also manage it as you like."

"The Position tab from the right part of the Wallpaper Master application lets you customize the position of the wallpaper and select if you want it to be centered or streched."

"The Color button provides you options for the background color."

"The Monitor button from the right part of the Wallpaper Master program lets you monitor a specified directory."

"The Options window helps you allows you to auto start the wallpaper at windows logon, to close it after a number of seconds etc."