/indra/newview/skins/default/xui/en/panel_avatar_tag.xml

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<panel
 name="avatar_tag_notification"
 top="10"
 width="250"
 height="100"
 follows="all">
  <panel
     width="240"
     height="24"
     left="5"
     background_visible="true"
     background_opaque="false"
     follows="left|top|right"
     top="-5"
     bg_alpha_color="black"
     name="msg_caption">
  	<avatar_icon
         top="-3"
         left="3"
         width="18"
         image_name="Generic_Person"
         height="18"
         follows="left|top"
         enabled="true"
         name="avatar_tag_icon" />
    	<text
         width="160"
         top="-8"
         left="30"
         height="20"
         follows="left|right|top"
	 font.style="BOLD"
         text_color="white"
         word_wrap="true"
         mouse_opaque="true"
         name="sender_tag_name">
	      Angela Tester
    	</text>
	<text
        font="SansSerifSmall"
         follows="right"
         height="13"
         layout="topleft"
	 halign="right"
         right="-5"
         name="tag_time"
         top="8"
         value="23:30"
         width="50" />
	</panel>
 <text_editor
 bg_readonly_color="DkGray"
     font="SansSerifSmall"
     top="65"
     left="5"
     right="-5"
     height="100"
     follows="all"
     read_only="true"
     word_wrap="true"
     mouse_opaque="true"
     name="msg_text">
     The quick brown fox jumps over the lazy dog.
    </text_editor>
</panel>