manifest.json

{
    "manifest_version": 3,
    "name": "Chessboard Popup",
    "version": "2.0",
    "description": "Chess puzzles and timed website breaks with interactive chessboard",
    "icons": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png",
      "48": "images/icon-48.png",
      "128": "images/icon-128.png"
    },
    "action": {
      "default_popup": "popup/popup.html",
      "default_icon": {
        "16": "images/icon-16.png",
        "32": "images/icon-32.png",
        "48": "images/icon-48.png",
        "128": "images/icon-128.png"
      }
    },
    "permissions": [
      "storage",
      "alarms",
      "activeTab",
      "tabs"
    ],
    "host_permissions": [
      "<all_urls>"
    ],
    "background": {
      "service_worker": "background/service-worker.js"
    },
    "options_page": "settings/settings.html",
    "content_scripts": [
      {
        "matches": ["<all_urls>"],
        "js": [
          "libs/jquery.min.js",
          "libs/chessboardjs-1.0.0/js/chessboard-1.0.0.min.js",
          "libs/chess.js",
          "scripts/chess-game.js",
          "scripts/puzzle-generator.js",
          "scripts/timer.js",
          "overlay/timerBar.js",
          "overlay/overlay.js"
        ],
        "css": [
          "libs/chessboardjs-1.0.0/css/chessboard-1.0.0.min.css",
          "styles/chessboard.css"
        ]
      }
    ],
    "web_accessible_resources": [
      {
        "resources": [
          "libs/chessboardjs-1.0.0/img/chesspieces/wikipedia/*",
          "Puzzles/puzzles.json",
          "overlay/overlay.html",
          "images/solved.webm",
          "overlay/overlay.css"
        ],
        "run_at": "document_end",
        "matches": ["<all_urls>"]
      }
    ]
  }