Adjusting the density of the background image

1. Click the [Image] tab.
2. Drag the slider, or click or in the [Image] group.
   
   
   1. Hide (off)
   2. 25%
   3. 50%
   4. 75%
   5. 100%

   Press the shortcut key <F6> to switch between displaying the image (On (100%)) to displaying it faded at each density (75%, 50% and 25%) to hiding the image (Off).