FileSystem Plugin
This plugin loads images from your filesystem.

Using Add or Remove buttons you can add new folders to the available folders list.
For each folder you have in your list you can select two options:
Recourse subfolders: if checked, looks for images also in each subfolder of the selected folder
Only matching screen's size: if checked, looks only for images that match your screen's size.
This
option can be very usefull in many circumstances, expecially if you
have the same desktop images repeated with different sizes (as happens
with the fantastic Vladstudio images).
I use the Only matching screen's size
option with my laptop because it has two different screen sizes
depending if I use the internal monitor or an external one: I have all Vladstudio images in both sizes in the same folder and Jawc chooses only the right ones depending on the actual screen size.
Rotation Mode: specifies how images are selected among all the available ones. Possible options are:
Sequential folder, sequential image:
Jawc keeps track of the last folder and of the last image selected in
every folder. At every change, it selects the next folder and from that
folder, the next image.
Random folder, sequential image: Jawc keeps track of the last image selected in every folder. At every
change, it selects a random folder and from that folder, the next image.
Sequential folder, random image: Jawc keeps track of the last folder selected. At every
change, it selects the next folder and from that folder selects a random image.
Random folder, random image: At every
change, Jawc selects a random folder and from that folder, a random image.
Filesystem 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.