Examine source code of m1pro

{
  "manifest_version": 2,
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "64": "icon64.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://monopoly-one.com/m1tv/",
        "https://monopoly-one.com/table/"
      ],
      "js": [
        "script.game.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "https://monopoly-one.com/*"
      ],
      "exclude_matches": [
        "https://monopoly-one.com/m1tv/",
        "https://monopoly-one.com/table/"
      ],
      "js": [
        "script.main.js"
      ],
      "run_at": "document_start"
    }
  ],
  "applications": {
    "gecko": {
      "id": "{8c17e428-a3f2-4184-91cd-1e011d8bc829}"
    }
  },
  "version": "1.0.3",
  "description": "Enhance UI/UX for https://monopoly-one.com",
  "name": "m1pro"
}