help_menu

At the top of the main panel are 3 menu tabs.

File:
 New: Clears the present drawing and gives you a new canvas to dry on.
 Open: Opens a drawing from your computer.
 Save: Saves the file over a previous version of it.
 Save As: Allows you to save the present drawing with a new name.
 Export To: Allows you to save your drawing as a standard image file.
 Export To: Allows you to print your drawing out.
 Properties: Allows you to customize the defaults of the program. Read this for more.

Edit:
 Set Border Color: Allows you to choose what color shapes should be outlined in.
 Fill: Allows you to toggle whether the selected shape is filled or it isn't.
 Move: Allows you to (after clicking on the canvas) move the selected shape with your mouse.
 Set Background Color: Allows you to change the color of the canvas.
 View Details: Allows you to see the selected shapes properties. Read this for more.

Add:
 Add Text: Allows you to add a specified text just like any other shape.
 Add Image: Allows you to add a specified image just like any other shape.
 Import shape: Allows you to import a shape previously exported and add it to your drawing.