Examine source code of The Tab Suspender

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "version": "2.0",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "webNavigation",
    "<all_urls>",
    "notifications",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Tab Suspender Settings",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    }
  },
  "web_accessible_resources": [
    "suspended.html",
    "data_management.html",
    "icons/icon32.png"
  ],
  "commands": {
    "suspend-current-tab": {
      "description": "Suspend the current active tab"
    },
    "whitelist-current-page": {
      "description": "Whitelist the current active page"
    },
    "unsuspend-current-tab": {
      "description": "Unsuspend/Restore the current active tab"
    },
    "toggle-site-override": {
      "description": "Toggle custom settings override for the current site"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{669407ff-70f0-4512-a010-ea4530c5e716}"
    }
  }
}