What is the difference between the [Prototype] and Default styles in the Style Designer?
The Default style represents the style used when no other style is named. We have to give some elements (namely graphics and pages) style names, even if one isn’t supplied in the source. So, we call them “Default.” For example, the Default graphics style is assigned when we encounter any image that is not explicitly defined as having another style (which is the case if there is no GraphicStyle marker). However, there is no Default paragraph style because every paragraph has a style name assigned to it in Frame or Word.
