Examine source code of The Giving Tree

{
  "theme": {
    "images": {
      "theme_frame": "thegivingtree.jpg"
    },
    "colors": {
      "frame": "#0a4a13",
      "tab_background_text": "#0b3606"
    }
  },
  "version": "2.0",
  "name": "The Giving Tree",
  "manifest_version": 2,
  "description": "An actual tree...An actual perfect tree...."
}