Examine source code of Smart Tab Suspender

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "version": "1.5.12",
  "description": "__MSG_extDescription__",
  "author": "Yavuz Yildirim",
  "homepage_url": "https://buymeacoffee.com/yavuzyildirim",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "alarms",
    "contextMenus",
    "activeTab",
    "notifications",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Smart Tab Suspender"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "commands": {
    "suspend-current-tab": {
      "suggested_key": {
        "default": "Alt+Shift+S",
        "mac": "Alt+Shift+S"
      },
      "description": "Suspend the current tab"
    },
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Shift+T",
        "mac": "Alt+Shift+T"
      },
      "description": "Open Smart Tab Suspender popup"
    }
  },
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "smart-tab-suspender@yavuzyildirim",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}