Examine source code of Yanima region unlocker

{
  "name": "Yanima region unlocker",
  "description": "Unlocks region restrictions on yanima.space",
  "version": "1.1.0",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "tabs",
    "alarms",
    "https://version.aniliberty.space/*"
  ],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": "logo.png"
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "https://dev.yanima.space/*",
        "https://beta.yanima.space/*",
        "https://yanima.space/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e8cffaa8-2789-4300-a0e6-80f9659eeaf5}"
    }
  }
}