Preferences (Xfce 4.8/4.10)
You can open the Desktop settings dialog by clicking on the Desktop icon in the Settings Manager or by right-clicking on an empty area of the desktop and selecting Desktop Settings from the popup menu.
Select the “None” option if you want xfdesktop to ignore the backdrop image and only use the selected colors.
Select the “Single image” option if you want xfdesktop to use an image file as wallpaper.
Select the “Image List” option if you want xfdesktop to randomly choose the backdrop image from among a list.
If you selected the “Single image” option, you can choose an image from the treeview. Click on an image to set it as the current backdrop. xfdesktop will update the background of your desktop automatically.
You can add images to the treeview by clicking on the + button, which will pop up a file chooser dialog. Images can be removed using the X button.
If you selected the “Image list” option, you can use the “New” button which will display a Create/Load Backdrop List dialog. From there you can select an existing list or create a new one. You can then use the + and X buttons to add and remove images to the list. xfdesktop will then randomly choose a backdrop from among this list every time it starts.
Five Style options (“Centered”, “Tiled”, “Stretched”, “Scaled” and “Zoomed”) are available to specify the fitting of the backdrop image on the screen, depending on its size. You can also select the “Auto” item if you want to let xfdesktop take care of this setting.
xfdesktop supports xinerama and multiscreen modes. In multiscreen mode, the Background tab shows one tab per screen.
The Colors pick list contains four options: “Solid color”, “Horizontal gradient”, “Vertical gradient”, or “Transparent”.
Two colored buttons allow you to choose the colors for your desktop. When the solid color option is selected, only the first color is available. When either of the gradient options is selected, both the first and second colors are available. Both of the color buttons open a color chooser dialog. The selected colors will fill the entire screen.
The “Transparent” option can be used with a semi-transparent background image. This will allow the selected colors to show through the backdrop image. This option requires an activated compositor.
The two sliders allow you to adjust the brightness and the saturation of the backdrop image and/or color.
If an image-list is selected, a new image from that list can be displayed automatically every 'X' minutes by checking the Change the background (in minutes): box and picking a duration from the list.
If you check the Show applications menu on desktop right click option, the Applications menu will be shown when right-clicking on the desktop.
The Show application icons in menu option allows you to show or hide icons in the Applications drop-down menu.
Window List Menu
If you check the Show window list menu on desktop middle click option, the window list menu will be shown when middle-clicking on the desktop.
The Show application icons in menu option allows you to show or hide icons in the menu. This option is only available when Show window list menu on desktop middle click is checked.
The Show workspace names in list option allows you to show or hide workspace names in the list. If checked, windows are shown under the name of their workspace. Otherwise, they are all grouped in the same portion of the menu. This option is only available when Show window list menu on desktop middle click is checked.
The Show submenus for the windows in each workspace option allows you to have the windows displayed in a submenu titled with the workspace name. This option is only available when Show workspace names in list is checked.
The Show sticky windows only in active workspace option allows you to have sticky windows displayed only in the active workspace, instead of displaying these items in all workspaces.
The Icon type: picklist list allows you to set the behavior of the desktop icons. There are three options: “None”, to disable desktop icons entirely; “Minimized application icons”, to show icons for minimized or hidden applications on the desktop; and “File/launcher icons”, to show the contents of your $XDG_DESKTOP_DIR directory on the desktop.
If desktop icons are enabled, you can control the size of the icon itself (in pixels) with the “Icon size:” option, and the font size used to display the icon text (in points) with the “Use custom font size:” option. If you do not check this last option, the system defaults will be used.
If Show thumbnails is enabled, thumbnails are visible on the desktop, just as they are in the file manager.
If Single click to activate items is enabled, files are opened and launchers are executed with a single click.
The checkboxes allow you to show or hide special icons on the desktop when xfdesktop is set to draw icons. Double clicking those icons will open a Thunar window displaying the contents of a particular path.
Home stands for your home folder, that is to say, $HOME. Filesystem stands for the root of your file system, also known as /. Trash stands for your trash folder, and Removable Devices represents floppy drives, USB drives and keys, external hard drives, optical discs, etc.