Brightness control

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "Brightness control",
    "description": "This extension allows you to change brightness of any website (where it is possible).",
    "version": "1.0",
    "browser_action": {
        "default_popup": "popup.html"
    },
    "icons": {
        "16": "icon.png",
        "48": "icon.png",
        "128": "icon.png"
    },
    "content_scripts": [
        {
            "matches": [
                ""
            ],
            "js": [
                "content.js"
            ],
            "run_at": "document_start"
        }
    ],
    "background": {
        "scripts": [
            "background.js"
        ],
        "persistent": false
    },
    "permissions": [
        "activeTab"
    ]
}