Parsing RTF form WPF Rich text box incorrectly.

[tomhornyak]

The following RTF, generated form a WPF RTB is parsed incorrect, wrong highlight color (SB yellow, not black), wrong font and font size.

{\rtf1\ansi\ansicpg1252\uc1\htmautsp\deff2{\fonttbl{\f0\fcharset0 Times New Roman;}{\f2\fcharset0 Segoe UI;}}{\colortbl\red0\green0\blue0;\red255\green255\blue255;\red255\green255\blue128;}\loch\hich\dbch\pard\plain\ltrpar\itap0{\lang1033\fs24\f2\cf0 \cf0\ql{\fs40\f2 {\highlight2\ltrch Hello}\li0\ri0\sa0\sb0\fi0\ql\par}
{\fs40\f2 {\highlight2\ltrch World}\li0\ri0\sa0\sb0\fi0\ql\par}
{\fs40\f2 {\ltrch }\li0\ri0\sa0\sb0\fi0\ql\par}
}
}