Marmalade

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Marmalade",
  "description": "Chess AI, Lichess",
  "version": "0.0.2",
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://lichess.org/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "page_action": {
    "default_icon": "icon128.png",
    "default_popup": "popup.html",
    "default_title": "Next Move"
  }
}