Dim, brighten, or color-correct an image plane.
If you are using na image plane as a reference for modeling, you may want to reduce the brightness or contrast of the image plane to make it easier to see 3D objects. You can also adjust the overall colors of an image plane.
This is the same as setting the image plane RGB Mult and RGB Offset values in the Camera Editor for all image planes (see below).
To undim all image planes, choose WindowDisplay > Toggles > Image Planes.
To adjust image plane brightness, contrast, or color