Examine source code of Sunflowers Sunflowers

{
  "theme": {
    "images": {
      "theme_frame": "sunflowersbovenkant.jpg"
    },
    "colors": {
      "frame": "#fffb29",
      "tab_background_text": "#fffb29"
    }
  },
  "version": "2.0",
  "name": "Sunflowers Sunflowers",
  "manifest_version": 2,
  "description": "Sunflower, sunflower, standing straight and tall,\nSunflower, sunflower, you're the tallest flower of them all!\nSunflower, sunflower, when your seeds fall to the ground,\nSunflower, sunflower, by the squirrels they'll be found!\n      \nby Helen Keller"
}