Examine source code of Commander

{
  "manifest_version": 2,
  "name": "Commander",
  "author": "Sameer Zeidat",
  "description": "Run browser and web page actions",
  "version": "0.5.4",
  "icons": {
    "16": "img/commander_16_color.png",
    "48": "img/commander_48_color.png",
    "128": "img/commander_128_color.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "img/commander_16_grey.png"
    },
    "default_title": "Commander",
    "default_popup": "actions.html"
  },
  "permissions": [
    "tabs",
    "clipboardWrite",
    "storage",
    "nativeMessaging",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cee9d60f-a270-41e2-85df-bbd2c4ab87ca}"
    }
  },
  "commands": {
    "_execute_browser_action": {
      "description": "Commander",
      "suggested_key": {
        "default": "F1"
      }
    },
    "command-1": {
      "description": "Action not defined"
    },
    "command-2": {
      "description": "Action not defined"
    },
    "command-3": {
      "description": "Action not defined"
    },
    "command-4": {
      "description": "Action not defined"
    },
    "command-5": {
      "description": "Action not defined"
    },
    "command-6": {
      "description": "Action not defined"
    },
    "command-7": {
      "description": "Action not defined"
    },
    "command-8": {
      "description": "Action not defined"
    },
    "command-9": {
      "description": "Action not defined"
    },
    "command-10": {
      "description": "Action not defined"
    },
    "command-11": {
      "description": "Action not defined"
    },
    "command-12": {
      "description": "Action not defined"
    },
    "command-13": {
      "description": "Action not defined"
    },
    "command-14": {
      "description": "Action not defined"
    },
    "command-15": {
      "description": "Action not defined"
    },
    "command-16": {
      "description": "Action not defined"
    },
    "command-17": {
      "description": "Action not defined"
    },
    "command-18": {
      "description": "Action not defined"
    },
    "command-19": {
      "description": "Action not defined"
    },
    "command-20": {
      "description": "Action not defined"
    },
    "command-21": {
      "description": "Action not defined"
    },
    "command-22": {
      "description": "Action not defined"
    },
    "command-23": {
      "description": "Action not defined"
    },
    "command-24": {
      "description": "Action not defined"
    }
  }
}