Examine source code of ZenNotes

{
  "manifest_version": 3,
  "name": "ZenNotes",
  "version": "1.3.1",
  "description": "With ZenNotes take quick notes directly from your favorite browser.",
  "permissions": [
    "storage",
    "contextMenus",
    "scripting",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "commands": {
    "open_side_panel": {
      "suggested_key": {
        "windows": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y"
      },
      "description": "Toggle the side panel"
    }
  },
  "sidebar_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_panel": "popup.html"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "js/indexed_db.js",
        "js/classes.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "m.sarabi.jkd@gmail.com-ZenNotes",
      "strict_min_version": "112.0"
    }
  }
}