Looks good to me.

Better solution than in version 1.x.x, where you had line breaks and ">" in front of every single line. (a.k.a. Kammquoting in German)

I agree, but what about something like this RegEx:

("#[quote=(.+?)](.+?)[/quote]#is", '<fieldset><legend style="font-weight: bold;">1</legend>2</fieldset>'

in connection with:

fieldset { margin: 10px 0px 10px 10px; padding: 5px; color: #xxxxxx; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 13px; font-style: normal ; border: 1px solid #yyyyyy; }

...or so?

Just playing around...