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

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<floater
  open_positioning="cascading"
  legacy_header_height="18"
  can_resize="true"
  height="588"
  layout="topleft"
  name="floater_my_appearance"
  help_topic="appearance"
  save_rect="true"
  single_instance="true"
  reuse_instance="true"
  title="APPEARANCE"
  min_height="440"
  min_width="333"
  width="333">
    <panel
      top="18"
      class="sidepanel_appearance"
      name="main_panel"
      filename="sidepanel_appearance.xml"
      label="Edit Appearance"
      font="SansSerifBold"/>
</floater>