Use the AdjustDGN command to adjust the appearance of DGN Underlays against the graphics area background. You can adjust fade, contrast, and monochrome values. The settings do not affect the original file. When you print the drawing the settings are recognized.
To adjust DGN Underlays:
Note: The options for changing the appearance of the DGN underlay against the graphics area background are available on the DGN Underlay contextual ribbon tab.
If the ribbon is active, select a DGN underlay in the graphics area and control the appearance of the DGN underlay against the graphics area background from the DGN Underlay contextual ribbon tab.
Access
Command: AdjustDGN