SkyShowtime UltraWide: custom fullscreen ratios

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_name__",
    "description": "__MSG_description__",
    "default_locale": "en",
    "version": "0.0.1",
    "manifest_version": 3,
    "permissions": [
        "storage"
    ],
    "host_permissions": [
        "https:\/\/*\/*"
    ],
    "icons": {
        "48": "img\/ultrawide48.png",
        "128": "img\/ultrawide128.png"
    },
    "action": {
        "default_popup": "popup.html",
        "default_icon": "img\/ultrawide48.png"
    },
    "content_scripts": [
        {
            "js": [
                "options.js",
                "content.js"
            ],
            "matches": [
                "*:\/\/*.skyshowtime.com\/*"
            ]
        },
        {
            "js": [
                "options.js",
                "contentAll.js"
            ],
            "css": [
                "contentAll.css"
            ],
            "matches": [
                "https:\/\/*\/*"
            ]
        }
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "img\/ultrawide48.png"
            ],
            "matches": [
                "https:\/\/*\/*"
            ]
        }
    ],
    "background": {
        "service_worker": "background.js"
    }
}