Examine source code of The Drain

{
  "name": "The Drain",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "jhgfd.jpg"
    },
    "colors": {
      "frame": "rgba(82, 124, 222, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(34, 209, 136, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d54a327e-aea0-4798-9c06-77a07dad4f4c}"
    }
  }
}