Examine source code of The Bomb

{
  "theme": {
    "images": {
      "theme_frame": "thebomb30_2.png"
    },
    "colors": {
      "frame": "#870c0c",
      "tab_background_text": "#e3e01c"
    }
  },
  "version": "2.0",
  "name": "The Bomb",
  "manifest_version": 2,
  "description": "the bomb with easy to read radioactive text."
}