Examine source code of Minibase Web Clipper

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "2.3.3",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "minibase@minibase.md",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "scripting",
    "storage",
    "http://localhost/*",
    "*://twitter.com/*",
    "*://x.com/*",
    "*://www.youtube.com/*",
    "*://youtube.com/*",
    "<all_urls>"
  ],
  "commands": {
    "quick-save": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "Quick save the current page to Minibase"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; connect-src 'self' http://localhost:7421 https://*.posthog.com https://eu.i.posthog.com https://save-api.jswallez.workers.dev https://*.stripe.com;",
  "web_accessible_resources": [
    "minibase-logo.png",
    "minibase-wordmark.png",
    "htmd-wordmark.png",
    "js-photo.jpg"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content-scripts/overlay.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "__MSG_extName__",
    "theme_icons": [
      {
        "light": "icon-16-light.png",
        "dark": "icon-16-dark.png",
        "size": 16
      },
      {
        "light": "icon-32-light.png",
        "dark": "icon-32-dark.png",
        "size": 32
      }
    ]
  }
}