Black White and Blurry

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "Black White and Blurry",
    "description": "A design tool that uses filters to turn the web page grayscale and blury. This can help show where contrast is needed in a design.",
    "version": "1.2",
    "background": {
        "persistent": false,
        "scripts": [
            "popup.js"
        ]
    },
    "browser_action": {
        "default_icon": "icon128.png",
        "default_popup": "black_white_blur.html"
    },
    "icons": {
        "16": "icon16.png",
        "48": "icon48.png",
        "128": "icon128.png"
    },
    "permissions": [
        "activeTab",
        "storage"
    ]
}