Examine source code of MangaGlow Overlay

{
  "manifest_version": 3,
  "name": "MangaGlow Overlay",
  "description": "Modernizes MangaGo pages and finds official releases through MangaUpdates.",
  "version": "0.7.59",
  "permissions": [
    "storage",
    "declarativeNetRequestWithHostAccess"
  ],
  "host_permissions": [
    "https://api.mangaupdates.com/*",
    "https://api.openverse.org/*",
    "https://gifsnap.com/*"
  ],
  "optional_host_permissions": [],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3a8b3783-a712-46bd-a0da-4fd3ccb2f30f}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  },
  "action": {
    "default_title": "MangaGlow Overlay",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icon-16.png",
      "32": "assets/icon-32.png",
      "48": "assets/icon-48.png",
      "128": "assets/icon-128.png"
    }
  },
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://mangago.me/home/people/*/manga/*",
        "https://www.mangago.me/home/people/*/manga/*",
        "https://mangago.me/read-manga/*",
        "https://www.mangago.me/read-manga/*"
      ],
      "js": [
        "page-bridge.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://mangago.me/*",
        "https://www.mangago.me/*"
      ],
      "js": [
        "boot.js",
        "shared/settings.js",
        "shared/page-utils.js",
        "content.js"
      ],
      "css": [
        "content.css",
        "mobile.css"
      ],
      "run_at": "document_start"
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'none'"
  }
}