Examine source code of Broken browser

{
  "theme": {
    "images": {
      "theme_frame": "broken-browser.png"
    },
    "colors": {
      "frame": "#3ab9c2",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Broken browser",
  "manifest_version": 2,
  "description": "Shattered glass with a bullet hole to look like a broken browser."
}