Examine source code of Codeforces QoL

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  "description": "Quality-of-life enhancements for Codeforces: Focus Mode, instant problem navigation, clipboard submit, hide test info, and gym finder.",
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    "default_title": "Codeforces QoL",
    "default_popup": "src/ui/popup.html"
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    "page": "src/ui/options.html",
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        "src/shared/storage.js",
        "src/content/global.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
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        "https://*.codeforces.com/gym/*/problem/*"
      ],
      "js": [
        "src/shared/storage.js",
        "src/content/navigation.js"
      ],
      "run_at": "document_end"
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    {
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      ],
      "js": [
        "src/shared/storage.js",
        "src/content/contest.js"
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      "run_at": "document_start"
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    {
      "matches": [
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        "https://*.codeforces.com/contest/*/submit*",
        "https://codeforces.com/gym/*/submit*",
        "https://*.codeforces.com/gym/*/submit*"
      ],
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        "src/shared/storage.js",
        "src/content/submit.js"
      ],
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    },
    {
      "matches": [
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        "https://*.codeforces.com/problemset/submission/*/*",
        "https://codeforces.com/gym/*/submission/*",
        "https://*.codeforces.com/gym/*/submission/*",
        "https://codeforces.com/contest/*/my",
        "https://*.codeforces.com/contest/*/my",
        "https://codeforces.com/gym/*/my",
        "https://*.codeforces.com/gym/*/my",
        "https://codeforces.com/contest/*/problem/*",
        "https://*.codeforces.com/contest/*/problem/*",
        "https://codeforces.com/gym/*/problem/*",
        "https://*.codeforces.com/gym/*/problem/*",
        "https://codeforces.com/problemset/status*",
        "https://*.codeforces.com/problemset/status*"
      ],
      "js": [
        "src/shared/storage.js",
        "src/content/submission.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://codeforces.com/gyms"
      ],
      "js": [
        "src/shared/sha512.js",
        "src/shared/cf-api.js",
        "src/shared/storage.js",
        "src/content/gym-page.js"
      ],
      "run_at": "document_idle"
    }
  ]
}