Responsive Tester

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "background": {
        "service_worker": "\/js\/welcome.js"
    },
    "action": {
        "default_icon": {
            "16": "assert\/icon_16.png",
            "32": "assert\/icon_32.png",
            "48": "assert\/icon_48.png",
            "64": "assert\/icon_64.png",
            "128": "assert\/icon_128.png"
        },
        "default_popup": "index.html"
    },
    "default_locale": "en",
    "description": "__MSG_AppDesc__",
    "icons": {
        "16": "assert\/icon_16.png",
        "32": "assert\/icon_32.png",
        "48": "assert\/icon_48.png",
        "64": "assert\/icon_64.png",
        "128": "assert\/icon_128.png"
    },
    "manifest_version": 3,
    "name": "__MSG_AppName__",
    "permissions": [
        "activeTab"
    ],
    "version": "3.0.0",
    "homepage_url": "https:\/\/test-responsive.dllplayer.com"
}