Url Plugin
This plugin loads images from web urls.

Using Add
or Remove
buttons you can add new urls to the available url list.
For each url you have in your list you can select these options:
Url's name: the 'logical name' associated with this url.
Url: the url itself
Image resize mode: specifies how to resize the image downloaded: Tiled, Centered or Stretched.
Rotation Mode:
specifies how images are selected: randomly or in sequence.
Url plugin context menu

The only available option in the plugin's context menu is Change image.
Clicking on the menu item makes the plugin immediately change the
desktop image according to the current settings.