gistfile1.xml

<?xml version="1.0" encoding="UTF-8" ?>
<skin name="Snow" author="Michael Swiger" version="1.0" loader="1.0">
 <widget name="Button">
  <style>
   <image name="Background" source="snow.png" x="0" y="0" width="20" height="20" />
   <font source="fonts/kewlstuff.ttf" color="#FF0000" size="12" />
  </style>
  <style name="Hover">
   <image name="Background" source="snow.png" x="0" y="20" width="20" height="20" />
  </style>
  <style name="Activated">
   <image name="Background" source="snow.png" width="20" height="20" loop="false">
    <frame time="100" x="0" y="20" />
    <frame time="100" x="0" y="40" />
    <frame time="100" x="0" y="60" />
   </image>
   <sound name="Activated" source="button-clicked.wav" />
  </style>
 </widget>
</skin>

gistfile2.yml

skin: 
  meta: 
    name: Snow
    author: Michael Swiger
    version: 1.0
    loader: 1.0
  widgets: 
  - style: 
      font: 
        size: 12
        color: "#FF000"
        source: fonts/kewlstuff
      image: 
        name: Background
        x: 0
        y: 0
        height: 20
        source: snow.png
        width: 20