Examine source code of Dimothy - Video Night Mode

{
  "manifest_version": 3,
  "name": "Dimothy - Video Night Mode",
  "version": "1.0.0",
  "description": "Add warm night mode filters to any video, reduce blue light & enhance audio. Easy on your eyes!",
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "contextMenus",
    "alarms"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "contact.dimothy@gmail.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "action": {
    "default_title": "Dimothy - Click me for cozy video vibes! 🌙",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://chrome.google.com/*",
        "*://chromewebstore.google.com/*"
      ],
      "js": [
        "content.js",
        "audio.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "commands": {
    "toggle-video": {
      "suggested_key": {
        "default": "Alt+Shift+V"
      },
      "description": "Toggle Video Filter"
    },
    "toggle-audio": {
      "suggested_key": {
        "default": "Alt+Shift+A"
      },
      "description": "Toggle Audio Enhancement"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "content.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}