SuperReplace removes all extra fonts/styles when saving. If you use only two styles: the normal style and the red style, you can set this item. The size of the filter with this option is very small.(style = big size!)
SuperReplace saves this file as a document. You need save as document if your filter has syntax error. You may choose this item during writing very long filter(check syntax = time!)
SuperReplace saves this file as an filter application. It checks the filter syntax before saving.