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

<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<!--
  Not can_close / no title to avoid window chrome
  Single instance - only have one at a time, recycle it each spawn
-->
<floater
 legacy_header_height="25"
 bevel_style="in"
 bg_opaque_image="Inspector_Background"
 can_close="false"
 can_minimize="false"
 height="148"
 layout="topleft"
 name="inspect_toast"
 single_instance="true"
 sound_flags="0"
 visible="true"
 width="228">
</floater>