Examine source code of Analytics+ for NextDNS

{
  "manifest_version": 3,
  "version": "1.0.2",
  "name": "Analytics+ for NextDNS",
  "short_name": "NextDNS",
  "description": "Show more domains on the NextDNS Analytics dashboard.",
  "icons": {
    "16": "icons/icon.svg",
    "32": "icons/icon.svg",
    "48": "icons/icon.svg",
    "96": "icons/icon.svg",
    "128": "icons/icon.svg",
    "256": "icons/icon.svg"
  },
  "host_permissions": [
    "https://api.nextdns.io/*",
    "https://my.nextdns.io/*"
  ],
  "permissions": [
    "declarativeNetRequestWithHostAccess"
  ],
  "action": {
    "default_title": "NextDNS"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "path": "rules.json",
        "enabled": true
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2a0ad3e8-d47e-4458-9649-d2bb0931c87d}",
      "strict_min_version": "135.0"
    },
    "gecko_android": {
      "id": "{2a0ad3e8-d47e-4458-9649-d2bb0931c87d}",
      "strict_min_version": "135.0"
    }
  }
}