2.1.1661 Part 4 Section 188.8.131.52, 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 in a paragraph, and there is no lstStyle defined, the text in the list defaults to the current text style.