Examine source code of Haiilo Enhancer

{
  "manifest_version": 2,
  "name": "Haiilo Enhancer",
  "version": "0.3.5",
  "description": "Enhance your Haiilo experience - mute users, customize your feed, and more",
  "homepage_url": "https://github.com/nichu42/haiilo-enhancer",
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab",
    "scripting",
    "tabs",
    "webNavigation",
    "https://*.haiilo.app/*",
    "https://*.haiilo.com/*"
  ],
  "optional_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.haiilo.app/*",
        "https://*.haiilo.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Haiilo Enhancer"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "haiilo-enhancer@nichu42.de",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}