Examine source code of The Atomic Bomb

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffd68a"
    }
  },
  "version": "2.0",
  "name": "The Atomic Bomb",
  "manifest_version": 2,
  "description": "An image showing the crazy things the military experimented with during the days. All in the name of homeland security, right?"
}