2.1.1367 Part 1 Section, txBody (Shape Text Body)

a.   The standard does not describe the relationship between similar properties in child elements p (text paragraphs) and lstStyle (text list styles).

In Office, if no text list styles are defined in a paragraph, styles from lstStyle are used. If no list styles are defined and there is no lstStyle defined, the text in the list defaults to the current text style.