Sound Effects for Trello

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "Sound Effects for Trello",
    "description": "Plays sound effects for various Trello actions. This is not an official Trello app!",
    "version": "1.0.2",
    "icons": {
        "16": "SEFTicon16.png",
        "48": "SEFTicon48.png",
        "128": "SEFTicon128.png"
    },
    "permissions": [
        "storage"
    ],
    "content_scripts": [
        {
            "matches": [
                "https:\/\/trello.com\/b\/*"
            ],
            "js": [
                "script.js"
            ],
            "run_at": "document_end"
        }
    ],
    "options_ui": {
        "page": "options.html",
        "chrome_style": true
    }
}