How to auto fit font when have multiple language text?

[xtuzy]

Default font is segoe ui, not support chinese

[xtuzy]

Core library don't support select font for every char, so i can't let it auto fit. Use css specify font is best easy when not change core library.
Such as :

"<span style=\"color: red;font-family: FangSong\">这里是</span> an <b>HtmlLabel</b> on transparent background with <span style=\"color: red\">colors</span> and links: " +
                       "<a href=\"http://htmlrenderer.codeplex.com/\">HTML Renderer</a>"