rich username styles

Hi Admin can you help me how can i make this username style and when thread is ansewered to have ansewered icon? thanks

Step 1 : Step 2 : Step 3 : widget_forum_statistics <dd><xf:username user="{$forumStatistics.latestUser}" /></dd> Step 4 : <dd><xf:username user="{$forumStatistics.latestUser}" rich="true" /></dd>