Opaque and Transparent

  The Opaque and Transparent menu items allow you to choose
  how the images appear.

  Most of the time, geometric shapes or figures are opaque; you
  cannot see what lies behind them.

  Opaque figures are the default, as indicated by the shaded
  option button next to the Opaque menu item on the Options
  menu.

  If you choose Transparent from the Options menu, the
  background images show through the foreground images.

  The Transparent and Opaque settings affect not only figures
  but selected images being moved, and the Spray Can,
  Paintbrush, and Text tools.

  Additional topics:

  *   Options Menu

  *   Using Menus and Controls

  *   Overview of Paint