Examine source code of Sonic Arc — Audio Booster & EQ

{
  "manifest_version": 3,
  "name": "Sonic Arc — Audio Booster & EQ",
  "short_name": "Sonic Arc",
  "version": "0.6.2",
  "description": "Boost browser audio up to 600% with a 10-band EQ, sound profiles, now-playing, and local recording.",
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "downloads"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-bridge.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "page-audio-bridge.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "world": "MAIN"
    }
  ],
  "background": {
    "scripts": [
      "firefox-background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Sonic Arc audio booster and EQ",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "assets/icon16.png",
    "32": "assets/icon32.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "commands": {
    "toggle-enhancer": {
      "suggested_key": {
        "default": "Ctrl+Shift+9",
        "mac": "Command+Shift+9"
      },
      "description": "Toggle Sonic Arc on the active tab"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "sonic-arc@outseendigital.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}