Examine source code of Fallout 2 mural

{
  "theme": {
    "images": {
      "theme_frame": "Fallout2Banner.jpg"
    },
    "colors": {
      "frame": "#2e2c2c",
      "tab_background_text": "#57afb5"
    }
  },
  "version": "2.0",
  "name": "Fallout 2 mural",
  "manifest_version": 2,
  "description": "I searched personas for 'Fallout\" and got a bunch of Fallout 3 rubbish, so I created a banner incorporating images from the actual Fallout."
}