Examine source code of Simple Hinting

{
  "manifest_version": 3,
  "name": "__MSG_extensionTitle__",
  "version": "0.6.0",
  "default_locale": "en",
  "description": "__MSG_extensionDesc__",
  "icons": {
    "48": "img/icon48.png",
    "96": "img/icon96.png",
    "128": "img/icon128.png"
  },
  "author": "Étienne Deparis",
  "homepage_url": "https://git.umaneti.net/simple_hinting/about/",
  "browser_specific_settings": {
    "gecko": {
      "id": "simple_hinting@umaneti.net",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "120.0"
    }
  },
  "host_permissions": [
    "https://unshorten.umaneti.net/*"
  ],
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "js/browser-polyfill.min.js",
      "js/background.js"
    ]
  },
  "commands": {
    "toggle-hinting": {
      "suggested_key": {
        "default": "Alt+Shift+L"
      },
      "description": "__MSG_extensionCommand__"
    }
  },
  "action": {
    "default_icon": {
      "16": "img/icon16.png",
      "32": "img/icon32.png"
    },
    "default_title": "__MSG_extensionTitle__"
  }
}