Youtube Playback Speed Control

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Youtube Playback Speed Control",
    "version": "0.0.15",
    "manifest_version": 3,
    "description": "Control speed of the youtube playback using keyboard. Press '+' to increase and '-' to decrease the playback speed.",
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "permissions": [
        "storage"
    ],
    "options_page": "src\/option\/options.html",
    "background": {
        "service_worker": "src\/background.js"
    },
    "action": {
        "default_title": "Control speed of the youtube playback using keyboard or single mouse click.",
        "default_icon": {
            "19": "icons\/icon19.png"
        }
    },
    "content_scripts": [
        {
            "all_frames": true,
            "matches": [
                "http:\/\/*\/*",
                "https:\/\/*\/*"
            ],
            "css": [
                "css\/inject.css"
            ],
            "js": [
                "src\/inject\/inject.js"
            ],
            "run_at": "document_end"
        }
    ]
}