Merlin
Chessboard

Chessboard

Chessboard: FEN/PGN viewer

Merlin
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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "Chessboard: FEN/PGN viewer",
  "manifest_version": 2,
  "name": "Chessboard",
  "version": "1.0.2",
  "icons": {
    "16": "ico/16.png",
    "32": "ico/32.png",
    "48": "ico/48.png",
    "96": "ico/96.png"
  },
  "browser_action": {
    "default_icon": {
      "48": "ico/48.png"
    },
    "default_popup": "popup/Chessboard.html"
  }
}