Examine source code of WritersProof

{
  "manifest_version": 3,
  "name": "WritersProof",
  "version": "1.0.1",
  "description": "Prove you wrote it. WritersProof captures cryptographic evidence of your writing process across web-based editors and publishing platforms.",
  "homepage_url": "https://writerslogic.com",
  "permissions": [
    "nativeMessaging",
    "scripting",
    "storage",
    "contextMenus"
  ],
  "optional_permissions": [
    "activeTab"
  ],
  "optional_host_permissions": [
    "https://*/*"
  ],
  "host_permissions": [
    "https://docs.google.com/*",
    "https://www.overleaf.com/*",
    "https://medium.com/*",
    "https://notion.so/*",
    "https://www.notion.so/*",
    "https://www.craft.do/*",
    "https://coda.io/*",
    "https://app.clickup.com/*",
    "https://app.nuclino.com/*",
    "https://stackedit.io/*",
    "https://hackmd.io/*",
    "https://hemingwayapp.com/*",
    "https://quillbot.com/*",
    "https://prowritingaid.com/*",
    "https://app.prowritingaid.com/*",
    "https://app.grammarly.com/*",
    "https://languagetool.org/*",
    "https://www.deepl.com/*",
    "https://writefull.com/*",
    "https://www.jasper.ai/*",
    "https://app.copy.ai/*",
    "https://chat.openai.com/*",
    "https://chatgpt.com/*",
    "https://claude.ai/*",
    "https://gemini.google.com/*",
    "https://www.bing.com/*",
    "https://copilot.microsoft.com/*",
    "https://www.icloud.com/*",
    "https://www.office.com/*",
    "https://onedrive.live.com/*",
    "https://www.dropbox.com/*",
    "https://www.wattpad.com/*",
    "https://archiveofourown.org/*",
    "https://www.scribophile.com/*",
    "https://reedsy.com/*",
    "https://www.penana.com/*",
    "https://prosemirror.net/*",
    "https://*.etherpad.org/*",
    "https://pad.riseup.net/*",
    "https://write.as/*",
    "https://wordpress.com/*",
    "https://*.wordpress.com/*",
    "https://*.ghost.io/*",
    "https://substack.com/*",
    "https://*.substack.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "cpoe@writerslogic.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "standalone.js",
      "secure-channel.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://docs.google.com/document/*",
        "https://www.overleaf.com/project/*",
        "https://medium.com/p/*",
        "https://medium.com/new-story*",
        "https://notion.so/*",
        "https://www.notion.so/*",
        "https://www.craft.do/*",
        "https://coda.io/d/*",
        "https://app.clickup.com/*/docs/*",
        "https://app.nuclino.com/*",
        "https://stackedit.io/app*",
        "https://hackmd.io/*",
        "https://hemingwayapp.com/*",
        "https://quillbot.com/*",
        "https://prowritingaid.com/*",
        "https://app.prowritingaid.com/*",
        "https://app.grammarly.com/*",
        "https://languagetool.org/*",
        "https://www.deepl.com/write*",
        "https://writefull.com/*",
        "https://www.jasper.ai/*",
        "https://app.copy.ai/*",
        "https://chat.openai.com/*",
        "https://chatgpt.com/*",
        "https://claude.ai/*",
        "https://gemini.google.com/*",
        "https://www.bing.com/chat*",
        "https://copilot.microsoft.com/*",
        "https://www.icloud.com/pages/*",
        "https://www.office.com/*",
        "https://onedrive.live.com/*",
        "https://www.dropbox.com/scl/*",
        "https://www.wattpad.com/*",
        "https://archiveofourown.org/*",
        "https://www.scribophile.com/*",
        "https://reedsy.com/*",
        "https://www.penana.com/*",
        "https://*.etherpad.org/p/*",
        "https://pad.riseup.net/p/*",
        "https://write.as/*",
        "https://wordpress.com/post/*",
        "https://*.wordpress.com/wp-admin/post*",
        "https://*.ghost.io/ghost/*",
        "https://*.substack.com/publish/post/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; style-src 'self'; img-src 'self'; font-src 'none'; object-src 'none'; base-uri 'none'"
  }
}