This class represents a list style definition, usually added to a \helpref{wxRichTextStyleSheet}{wxrichtextstylesheet}.
The class inherits paragraph attributes from wxRichTextStyleParagraphDefinition, and adds 10 further attribute objects, one for each level of a list.
When applying a list style to a paragraph, the list style's base and appropriate level attributes are merged with the
paragraph's existing attributes.
You can apply a list style to one or more paragraphs using \helpref{wxRichTextCtrl::SetListStyle}{wxrichtextctrlsetliststyle}. You
can also use the functions \helpref{wxRichTextCtrl::NumberList}{wxrichtextctrlnumberlist}, \helpref{wxRichTextCtrl::PromoteList}{wxrichtextctrlpromotelist} and
\helpref{wxRichTextCtrl::ClearListStyle}{wxrichtextctrlclearliststyle}. As usual, there are wxRichTextBuffer versions of these functions
so that you can apply them directly to a buffer without requiring a control.
This function combines the given paragraph style with the list style's base attributes and level style matching the given indent, returning the combined attributes.