Zoom on doubleclick

{
    "update_url": "http:\/\/clients2.google.com\/service\/update2\/crx",
    "name": " Zoom on doubleclick",
    "version": "0.1.1",
    "manifest_version": 2,
    "description": "Zooming in on websites. Doubleclick on any element on this page to zoom in and doubleclick again, or use ESC, to zoom out.",
    "homepage_url": "http:\/\/m-software.de",
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "default_locale": "en",
    "content_scripts": [
        {
            "matches": [
                "http:\/\/*\/*",
                "https:\/\/*\/*"
            ],
            "js": [
                "src\/inject\/inject.js",
                "js\/jquery-1.8.3.min.js",
                "src\/zoom.js"
            ]
        }
    ]
}