Examine source code of BudgetKniss

{
  "manifest_version": 3,
  "name": "BudgetKniss",
  "description": "Shows results based on budget",
  "homepage_url": "https://github.com/yacine-bens/budgetkniss",
  "version": "2.0",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "64": "icons/icon64.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "BudgetKniss",
    "default_icon": "icons/icon16.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ouedkniss.com/store/*",
        "*://*.ouedkniss.com/*"
      ],
      "js": [
        "js/content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "*://*.ouedkniss.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{06831c5c-bd7d-46fc-893f-849fc7fc73e4}",
      "strict_min_version": "109.0"
    }
  }
}