manifest.json

{
  "name": "D&D Beyond Campaign DM Screen",
  "version": "1.2.2",
  "description": "DM Screen Extension for D&D Beyond. This extension extends the campaign page to turn it into a DM screen.",
  "manifest_version": 2,
  "icons": {
    "16": "assets/icon-16x16.png",
    "32": "assets/icon-32x32.png",
    "128": "assets/icon-128x128.png"
  },
  "permissions": ["storage", "activeTab", "tabs"],
  "background": {
    "scripts": ["background.js"],
    "persistent": false
  },
  "browser_action": {
    "default_title": "D&D Beyond Campaign DM Screen",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.dndbeyond.com/campaigns/*",
        "http://www.dndbeyond.com/campaigns/*"
      ],
      "js": ["content.js"]
    }
  ],
  "content_security_policy": "script-src 'self' https://www.google-analytics.com; object-src 'self'"
}