Screen Dimmer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "__MSG_extName__",
  "description": "__MSG_description__",
  "default_locale": "en",
  "version": "0.3.3",
  "manifest_version": 3,
  "action": {
    "default_popup": "popup.html",
    "default_icon": "./assets/icons/dimmer_desktop.png"
  },
  "icons": {
    "128": "./assets/icons/dimmer_desktop.png"
  },
  "background": {
    "service_worker": "background.js"
  },
  "commands": {
    "Ctrl+M": {
      "suggested_key": {
        "default": "Ctrl+M",
        "mac": "Command+M"
      },
      "description": "Ctrl+M."
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "incognito": "split",
  "content_scripts": [
    {
      "matches": [
        "*://*/*",
        "https://*/*"
      ],
      "run_at": "document_start",
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ]
}