font-RobotoMono/sources/RobotoMono-Regular.ufo/glyphs.background/U_breve.glif

<?xml version='1.0' encoding='UTF-8'?>
<glyph name="Ubreve" format="2">
  <advance width="500"/>
  <unicode hex="016C"/>
  <outline>
    <component base="U"/>
    <component base="breve" xOffset="45" yOffset="396"/>
  </outline>
</glyph>