Examine source code of Nature's Fireworks

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#f5d687",
      "tab_background_text": "#025702"
    }
  },
  "version": "2.0",
  "name": "Nature's Fireworks",
  "manifest_version": 2,
  "description": "The close up beauty of a giant dandelion-like plant in Idaho"
}