Examine source code of Quick Text Ref

{
  "manifest_version": 3,
  "name": "Quick Text Ref",
  "version": "3.1.11",
  "description": "Type a shortcut + Space to expand saved text snippets anywhere. Clipboard history, date tokens & fill-in fields.",
  "permissions": [
    "storage",
    "contextMenus",
    "tabs",
    "clipboardRead",
    "scripting",
    "alarms"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Quick Text Ref"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-polyfill.js",
        "content.js"
      ],
      "css": [
        "field-popup.css"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+A",
        "mac": "Command+Shift+A"
      },
      "description": "Open Quick Text Ref"
    },
    "quick-add": {
      "suggested_key": {
        "default": "Ctrl+Shift+N",
        "mac": "Command+Shift+N"
      },
      "description": "Add a new snippet"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-text-ref@sun524-bot.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}