Examine source code of Sheltie

{
  "theme": {
    "images": {
      "theme_frame": "Bracken-2-header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sheltie",
  "manifest_version": 2,
  "description": "A persona featuring my dog when he was still just a pup. He is a Shetland sheepdog, or sheltie.\n\ntags: collie, puppy, Lassie, fur, fluffy, animals, nature."
}