To set different bullet to specific list level style you should set the correct font-family as well.
When setting specific character as LevelText to the ListLevelStyle you should set the correct font-family as well. Here is example on how this could be done:
ListStyle list =
list.Levels.LevelText = ((
DocumentList documentList =
Paragraph paragraph =
paragraph.ListId = documentList.ID;
paragraph.ListLevel = 0;
The character used in this example is infinity. I hope this information is helpful for you.
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