Examine source code of Brown and Orange

{
  "theme": {
    "images": {
      "theme_frame": "Brown3000PNG.png"
    },
    "colors": {
      "frame": "#ff8d0a",
      "tab_background_text": "#f58a08"
    }
  },
  "version": "2.0",
  "name": "Brown and Orange",
  "manifest_version": 2,
  "description": "Solid brown with a fine background pattern and orange print. I have added \"Theme Font and Size Changer\"-Addon to my firefox and changed the font to \"Goudy Old Style\", size 22, which gave the browser a cool old style feel. I also downloaded \"Personas Expression\"-Addon and changed the colors on my tabs to add to the whole character."
}