View toolbars Toggles the visibility of the Main, HTML and Custom toolbars. Here you define the calling-syntax for the external filters and programs. An external filter gets the content of the active document as input, and its output is inserted as the new current document. Programs to use as filters are e.g. Tidy from w3.org. External programs simply do their job.
Nothing is filtered or output in the document.
This might be a script to copy your documents to a webserver or stuff like that. In the appearing window you can set the colors and regular expressions for the syntax-highlighter. For more Infos on Regular expressions read man 7 regex . Reset Syntax Highlighting Resets the Syntax-highlighting Regular Expressions to their defaults. Save Config Saves the current configuration.