Arbortext IsoDraw > User's Reference > Menus > Edit Menu > Preferences > Background
  
Background
The settings on the Background preferences panel affect how the image elements placed on the background layer are displayed.
You can choose between two display options:
The first displays the placed elements in a color freely selected by yourself, but does not depict tonal values (1-bit depth). This mode is particularly useful for line-art templates scanned in black/white.
You can define the display color by clicking the color field. You can choose the display color in the Colors edit dialog box.
Select the second option if, for example, you are working with photographs with tones (color or grayscale). The image elements are then displayed in their colors or grayscales. You can reduce the intensity by entering a percentage value (1% to 100%). A reduction in intensity may be useful, for example, if you want to use image elements as templates for tracing purposes.
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Image elements on the background layer are always printed in their original status regardless of the display mode selected.
The dialog box for specifying the background display can also be called up by means of the layer window by double clicking the background layer entry.