/indra/newview/skins/default/xui/en/widgets/tool_tip.xml

 1<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 2<tool_tip name="tooltip"
 3          max_width="200"
 4          padding="4"
 5          wrap="true"
 6          font="SansSerif"
 7          mouse_opaque="false" 
 8          bg_opaque_image="Tooltip"
 9          background_opaque="true"
10          background_visible="true"
11		      text_color="ToolTipTextColor"/>