Examine source code of fiery mount

{
  "theme": {
    "images": {
      "theme_frame": "fierymount.jpg"
    },
    "colors": {
      "frame": "#2b2a2a",
      "tab_background_text": "#f27e09"
    }
  },
  "version": "2.0",
  "name": "fiery mount",
  "manifest_version": 2,
  "description": "a volcano spewing lava"
}