Examine source code of No Emoji SERP

{
  "name": "No Emoji SERP",
  "version": "1.2",
  "manifest_version": 2,
  "description": "Clean google results of affiliate websites",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_title": "Visit project website"
  },
  "background": {
    "scripts": [
      "action.js"
    ]
  },
  "permissions": [
    "https://www.google.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.google.com/*"
      ],
      "js": [
        "background.js"
      ]
    }
  ]
}