Examine source code of Pink Leaf

{
  "theme": {
    "images": {
      "theme_frame": "leaf2.jpg"
    },
    "colors": {
      "frame": "#c99779",
      "tab_background_text": "#fcfa92"
    }
  },
  "version": "2.0",
  "name": "Pink Leaf",
  "manifest_version": 2,
  "description": "Oh the great leaf of spring!"
}