Examine source code of Christmas Tree Worms

{
  "theme": {
    "images": {
      "theme_frame": "ChristmasTreeWorms.jpg"
    },
    "colors": {
      "frame": "#0d0101",
      "tab_background_text": "#e4f0ea"
    }
  },
  "version": "2.0",
  "name": "Christmas Tree Worms",
  "manifest_version": 2,
  "description": "The worms live in the holes they tunnel into live coral.\n\nOnce we kill the coral and the rain forest, this Earth is toast. ~ Michael Berryman\n\nTAGS:\n     Nature, Oceans, Coral, Animals"
}