Examine source code of Replace URIs

{
  "name": "Replace URIs",
  "version": "2025.1.12",
  "author": "ivysrono",
  "manifest_version": 2,
  "icons": {
    "48": "icons/baseline_autorenew_black_48dp.png",
    "96": "icons/baseline_autorenew_black_96dp.png"
  },
  "description": "Replace URIs and so on.",
  "background": {
    "scripts": [
      "background.js",
      "rule_allTypes.js",
      "rule_mainFrame.js"
    ]
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc04453f-54e2-468c-94b2-adda428681a7}"
    }
  }
}