Examine source code of Jask Text Expander

{
  "manifest_version": 3,
  "name": "Jask Text Expander",
  "version": "1.0.1",
  "description": "Jask Text Expander: Instantly expand text shortcuts into longer saved text. Type /sig and watch it transform!",
  "author": "Jask",
  "homepage_url": "https://github.com/abaharzei4/jask-text-expander",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "jask-text-expander@abaharzei4.github.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_script.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "sounds/pop.wav"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_title": "Jask Text Expander - Your shortcut to faster typing"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  }
}