Examine source code of Rokot Dial

{
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.0.4",
  "manifest_version": 2,
  "default_locale": "en",
  "author": "__MSG_extensionAuthor__",
  "homepage_url": "https://github.com/zompin/dial",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "applications": {
    "gecko": {
      "id": "{e568b43b-659b-4ff6-bcc0-12c4cd82c490}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "logo.svg"
  },
  "commands": {
    "bookmark-1": {
      "suggested_key": {
        "default": "Ctrl+1"
      }
    },
    "bookmark-2": {
      "suggested_key": {
        "default": "Ctrl+2"
      }
    },
    "bookmark-3": {
      "suggested_key": {
        "default": "Ctrl+3"
      }
    },
    "bookmark-4": {
      "suggested_key": {
        "default": "Ctrl+4"
      }
    },
    "bookmark-5": {
      "suggested_key": {
        "default": "Ctrl+5"
      }
    },
    "bookmark-6": {
      "suggested_key": {
        "default": "Ctrl+6"
      }
    },
    "bookmark-7": {
      "suggested_key": {
        "default": "Ctrl+7"
      }
    },
    "bookmark-8": {
      "suggested_key": {
        "default": "Ctrl+8"
      }
    },
    "bookmark-9": {
      "suggested_key": {
        "default": "Ctrl+9"
      }
    },
    "bookmark-0": {
      "suggested_key": {
        "default": "Ctrl+0"
      }
    },
    "profile-next": {
      "suggested_key": {
        "default": "Ctrl+Alt+Space"
      }
    }
  },
  "permissions": [
    "bookmarks",
    "history",
    "storage",
    "tabs"
  ]
}