Examine source code of Promises

{
  "theme": {
    "images": {
      "theme_frame": "PromisesH2copyCustom.jpg"
    },
    "colors": {
      "frame": "#669933",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Promises",
  "manifest_version": 2,
  "description": "pine, sun, tree, water, reflect, pool, pond,nature, forest, green,"
}