The DITAVAL format has several elements: val, the root element, can contain a style-conflict element followed by prop or revprop elements; the prop and revprop elements can contain startflag and endflag elements; and the startflag and endflag elements can contain alt-text elements.

Conditional processing code should provide a report of any attribute values encountered in content that do not have an explicit action associated with them.

If an image in DITA content becomes flagged using a background color, the color should be represented as a thick border. If a foreground color is expressed, it should be represented as a thin border.