The screenshots have been taken from Mailtext's MUI-Prefs plugin. They show the beta-release from Jan. 14, 1997, meanwhile the layout has slightly changed.

Distance configuration.

Enable and disable patterns. A line matching the disable pattern will switch off the attributes engine until a line matches the enable pattern again.

Special characters.

Color configuration. Colors for five different quote levels can be configured, as well as the color for the '#' attribute and the URL highlighting.

URL action configuration.

Miscellaneous settings.

URL action example: An action has been configured to display the name of the clicked link along with the current stacksize in a requester. The requester pops up, after the link in the example text has been doubleclicked.