Mif2Go uses FrameMaker export filters to convert reference-page graphics created with FrameMaker drawing tools; see §31.2.5.7 Converting graphics on reference pages. You might or might not want to include the converted graphics in HTML output; see §21.3.7 Keeping or removing reference frames.
§23.5.4.1 Replacing reference-frame horizontal rules
§23.5.4.2 Suppressing indentation of reference-page graphics