Examine source code of Jump Cutter

{
  "name": "Jump Cutter",
  "version": "1.32.2",
  "description": "__MSG_extensionDescription__",
  "permissions": [
    "storage",
    "scripting"
  ],
  "content_security_policy": {
    "extension_pages": "default-src 'none'; script-src 'self'; img-src 'self'; style-src 'unsafe-inline'; media-src blob:"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "64": "icons/icon.svg-64.png",
      "128": "icons/icon-big-padded.svg-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content/main.js"
      ],
      "all_frames": true,
      "run_at": "document_idle",
      "match_about_blank": true
    }
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content/cloneMediaSources-for-page-world.js",
        "content/SilenceDetectorProcessor.js",
        "content/VolumeFilterProcessor.js",
        "chunks/*.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "options_ui": {
    "page": "options/index.html",
    "open_in_tab": true
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Space"
      }
    },
    "toggle_enabled": {
      "description": "__MSG_toggleExtension__",
      "suggested_key": {
        "default": "Alt+Shift+X"
      }
    }
  },
  "icons": {
    "64": "icons/icon.svg-64.png",
    "128": "icons/icon-big-padded.svg-128.png"
  },
  "manifest_version": 3,
  "default_locale": "en",
  "background": {
    "scripts": [
      "background/main.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jump-cutter@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "109.0"
    },
    "gecko_android": {}
  }
}