Examine source code of Dev Toolkit

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "homepage_url": "https://alihoushyaripour.com/",
  "author": "Ali Houshyari Pour",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "__MSG_actionTitle__",
    "default_popup": "src/popup/index.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  },
  "options_ui": {
    "page": "src/options/index.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "src/background/index.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/index.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": false
    }
  ],
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "cookies",
    "browsingData",
    "scripting",
    "downloads",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "fonts/*",
        "icons/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+X"
      },
      "description": "__MSG_commandOpenPanel__"
    },
    "toggle-stealth": {
      "suggested_key": {
        "default": "Alt+Shift+S"
      },
      "description": "__MSG_commandToggleStealth__"
    },
    "toggle-font": {
      "suggested_key": {
        "default": "Alt+Shift+F"
      },
      "description": "__MSG_commandToggleFont__"
    },
    "toggle-direction": {
      "suggested_key": {
        "default": "Alt+Shift+D"
      },
      "description": "__MSG_commandToggleDirection__"
    },
    "close-other-tabs": {
      "description": "__MSG_commandCloseOtherTabs__"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dev-toolkit@alihoushyaripour.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "version": "1.0.0"
}