Examine source code of nuclear firefox

{
  "theme": {
    "images": {
      "theme_frame": "nuclearfirefox.jpg"
    },
    "colors": {
      "frame": "#f7e2ac",
      "tab_background_text": "#1a0101"
    }
  },
  "version": "2.0",
  "name": "nuclear firefox",
  "manifest_version": 2,
  "description": "nuclear firefox"
}