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manifest.json

{
  "name": "Codeforces Problem Picker",
  "version": "0.1.0",
  "description": "A random problem picker tool based on tags/ratings.",
  "manifest_version": 3,
  "permissions": [
    "tabs"
  ],
  "host_permissions": [
    "https://*.codeforces.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.codeforces.com/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "css": [
        "extStyle.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/shuffle_button.png",
        "assets/loading_icon.gif"
      ],
      "matches": [
        "https://*.codeforces.com/*"
      ]
    }
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}