Examine source code of Acoustic Harmony Quest

{
  "manifest_version": 2,
  "name": "Acoustic Harmony Quest",
  "version": "1.0",
  "description": "Explore classical music theory, note pitch frequencies, and sound acoustics with Acoustic Harmony Quest. Analyze musical note indicators and tune the frequency dial to match exact musical pitches directly inside your browser extension popup.",
  "icons": {
    "48": "acoustic_harmony_quest_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Acoustic Harmony Quest"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fbfdcf9a-a31b-4573-9f31-dc88b3f9d998}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}