The preview pane located on PNotes.NET Control Panel allows you to preview contents of notes without opening them.
You may hide or show the pane using "Preview" toolbar button or corresponding menu command.
If you use skinless notes, the background color of preview pane will change accordingly to note's background color, unless you specify another one and choose the option to use user defined color (by clicking on "Preview Window Background Settings" toolbar button or corresponding menu command).
If your notes are skinnable, the default background color of preview pane will be system windows background color, unless you choose your own one (by clicking on "Preview Window Background Settings" toolbar button or corresponding menu command).
You also may switch between horizontal and vertical (on the right side) preview pane location by clicking on "Preview Window On The Right" toolbar button or corresponding menu command.