manifest.json

{
  "name": "Blanking for Google Slides™",
  "version": "1.0",
  "description": "Adds blanking to Google Slides™. Simply press 'b' to blank out the slide, and again to reveal it.",
  "manifest_version": 2,
  "permissions": [
    "https://docs.google.com/presentation/*",
    "https://docs.google.com/*/presentation/*",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://docs.google.com/*/presentation/*/present*slide*",
        "https://docs.google.com/presentation/*/present*slide*"
      ],
      "run_at": "document_idle",
      "match_about_blank": false,
      "all_frames": true,
      "js": [
        "jquery-3.3.1.slim.min.js",
        "present.js"
      ]
    }
  ],
  "icons": {
    "16": "logo-16.png",
    "48": "logo-48.png",
    "128": "logo-128.png",
    "256": "logo-256.png",
    "1000": "logo-1000.png"
  }
}