The Add Color Mapping dialogs allow you to define a color mapping byte sequence and the display parameters used when viewing that byte sequence.

There are 4 methods to add a new Color Mapping:

Toolbar: Select the Add Colormap toolbar button from the "Tools" menu
Keyboard Shortcut: The keyboard shortcut Ctrl+M is the default keystroke sequence that will add a new color mapping. This keystroke sequence can be remapped by selecting "Define Shortcuts" from the Options menu.
Menu: Select "Color Mapping" from the "Tools" menu and then choose "Add Mapping" from the popup menu.
Content Menu: Right click within the document view and select "Add Color Mapping".

Color Mapping Attributes

Hex Sequence	Defines the byte sequence in hex displayed in a special foreground and background color. The maximum byte sequence is 64 characters; any data entered beyond 32 bytes is ignored.
Separate hex and text view colors	Check to define separate rendering properties for the hex and text display within the editor.
Description	A description of the color mapping. This string is displayed in a tooltip when mouse cursor hovers for highlighted data in the editor.
Text Color	Selects the foreground color used to display the specified hex sequence. If no color is selected (unchecked), the default text color will be used.
Background Color	Selects the background color used to display for the specified hex sequence. If no color is selected (unchecked), the default color will be used.
Rectangle Color	Selects the color of rectangle drawn around the highlighted data. If no color is selected (unchecked), the default color will be used. Unless another color highlight sets a rectangle, no rectangle will be displayed.

For additional information, please see: