Examine source code of JSK SoundShape — Equalizer & Volume Booster

{
  "manifest_version": 3,
  "name": "JSK SoundShape — Equalizer & Volume Booster",
  "description": "Per-tab 10-band equalizer, volume boost and per-site profiles. Runs on your device — and tells you when a tab cannot be processed.",
  "version": "0.1.0",
  "short_name": "SoundShape",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "leveller-worklet.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src 'self' https://api.jskapps.com"
  },
  "commands": {
    "_execute_action": {
      "description": "Open SoundShape for the current tab"
    },
    "toggle-bypass": {
      "description": "A/B bypass — hear the tab unprocessed"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "soundshape@jskapps.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "authenticationInfo"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "SoundShape",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html"
  },
  "content_scripts": []
}