Preferences > Docking page > How to (docking) >
How to: set custom background color
Right click on program icon appears in system notification area and choose "Preferences" menu item from pop-up menu or click on button on PNotes Control Panel.
When "Preferences" dialog appears, choose "Schedule" page.
In order to use custom background color for docked notes check the appropriate check box and use color chooser to adjust desired color:
In order to use common background color uncheck the appropriate check box.
Default value: unchecked.