The Edit menu contains functions for editing and modifying the color table. This menu contains the following commands:

Undo—Resets the color table to its state just prior to the last operation.

Linear Ramp—Performs a linear interpolation of the color table based on specified start and end colors. The new progression in the color table uses the color indices specified in the Ramp Start and Ramp End control area text fields.

Exponential Ramp—Performs an exponentially weighted ramp (interpolation) of the color table based on the specified start and end colors. The new progression weights the table toward the starting color of the ramp based on the color index specified in the Ramp Start text field in the controls area.

Logarithmic Ramp—Performs a logarithmically weighted ramp (interpolation) of the color table based on the specified start and end colors. The new progression weights the colors toward the ending color of the ramp based on the color index specified in the Ramp End text field in the controls area.

Color Wheel—Opens a dialog box that you can use to modify a selected color. The color wheel dialog box that appears shows the selected color index number in the window title. The dialog box allows you to modify only the color selected in the Selected Color text field when Edit=>Color Wheel was chosen.