Highlighting preferences let you customize the colors Dreamweaver uses to identify template regions, library items, third-party tags, layout elements, and code.
To change a highlighting color:
Beside the object you want to change the highlighting color for, click the color box, then use the color picker to select a new color, or enter a hexidecimal value.
Note: For more information about using the color picker, see Working with colors
To activate or deactivate highlighting for an object:
Beside the object you want to activate or deactivate highlighting color for, select or deselect the Show checkbox.
To specify a highlight color for content tagged with third-party tags, select a color for the Third-Party Tags option. For more information about third-party tags, see "Customizing Dreamweaver" on the Macromedia Support Center.