Examine source code of GM Cheems

{
  "name": "GM Cheems",
  "manifest_version": 3,
  "icons": {
    "128": "cheems_128.png"
  },
  "background": {
    "service_worker": "background-wrapper.js",
    "scripts": [
      "background.bundle.js"
    ]
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "https://lichess.org/*",
        "https://*.chess.com/*"
      ],
      "js": [
        "modC.bundle.js"
      ]
    },
    {
      "run_at": "document_start",
      "world": "MAIN",
      "matches": [
        "https://lichess.org/*",
        "https://*.chess.com/*"
      ],
      "js": [
        "modA.bundle.js",
        "modB.bundle.js"
      ]
    },
    {
      "run_at": "document_idle",
      "matches": [
        "https://*.chess.com/*"
      ],
      "js": [
        "hookInjector.bundle.js"
      ]
    },
    {
      "run_at": "document_idle",
      "matches": [
        "https://lichess.org/*",
        "https://*.chess.com/*"
      ],
      "js": [
        "contentApp.bundle.js"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "https://app.gmcheems.xyz/*",
        "http://localhost/*",
        "http://127.0.0.1/*"
      ],
      "js": [
        "authRelay.bundle.js"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'; worker-src 'self'; connect-src 'self' https://*.posthog.com https://us.i.posthog.com https://*.gmcheems.xyz ws://127.0.0.1:8721 https://*.sentry.io https://github.com https://*.githubusercontent.com"
  },
  "action": {
    "default_title": "Click to show options"
  },
  "permissions": [
    "storage",
    "offscreen",
    "alarms"
  ],
  "devtools_page": "pages/devtools.html",
  "options_page": "pages/options.html",
  "host_permissions": [
    "https://*.gmcheems.xyz/*",
    "https://github.com/*",
    "https://*.githubusercontent.com/*",
    "https://*.sentry.io/*",
    "http://127.0.0.1:8787/*",
    "http://localhost:8787/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "pages/auth-complete.html",
        "pages/assets/auth-complete.bundle.js"
      ],
      "matches": [
        "https://app.gmcheems.xyz/*"
      ]
    }
  ],
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq8s0q20XPETYjgqqWL06jdtqopa9656/86ijPVVI28N4gqguq2g5/aqCU18wutTc6mMxTT7rU2uI06KnTmg0ZvgeEEPkPTiBB85K4s6esaJa4ZMon/8lrAGJgN6sdYpukLUcNxu4onacKl26uiZKYacJYFHtX/QowXgPWvD4+guQJ+ifojSLcDhhIdDKo81JKUo9vhLCvxhI1BJXeI7CwQdya4+fGh0LMna75n3AQDo2ysud+lmv+B7Vc3Vv2aTkWxqzhwiEiQjqF4BLEPnEMaU6goOPve667EKb8VF5wI7j8N0th11cTQQM/Btc5N3QLAQY/bPteYBcWVy0OSW0lQIDAQAB",
  "browser_specific_settings": {
    "gecko": {
      "id": "ext-v2@gmcheems.xyz",
      "strict_min_version": "128.0"
    }
  },
  "description": "Chess analysis & tactics trainer for Chess.com and Lichess",
  "version": "2.1.1"
}