manifest.json

{
  "manifest_version": 2,
  "name": "I am Darks",
  "version": "1.0",
  "description": "Turns the current page to a rough dark mode",
  "permissions": ["storage"],
  "icons": {
    "16": "images/darks__16.png",
    "32": "images/darks__32.png",
    "48": "images/darks__48.png",
    "128": "images/darks__128.png"
  },
  "browser_action": {
    "default_icon": "images/darks__16.png",
    "default_popup": "popup.html",
    "default_title": "Darks"
  },
  "content_scripts": [
    {
      "matches": ["*://*/*"],
      "js": ["js/contentScript.js"]
    }
  ]
}