Examine source code of Console Enhancer

{
  "manifest_version": 2,
  "name": "Console Enhancer",
  "version": "1.0",
  "description": "Enhance the browser console with custom messages and styles.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{823cf0b7-2f34-4e70-89a4-a60584b98fb9}"
    }
  }
}