UltraVolume - Sound Amplifier

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "__MSG_extensionName__",
    "description": "__MSG_extensionDescription__",
    "version": "1.0.0",
    "default_locale": "en",
    "permissions": [
        "activeTab",
        "storage",
        "scripting"
    ],
    "host_permissions": [
        "https:\/\/*\/*",
        "http:\/\/*\/*"
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "icons\/*.png"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "content.js"
            ],
            "run_at": "document_end",
            "all_frames": true
        }
    ],
    "action": {
        "default_popup": "popup.html",
        "default_title": "__MSG_extensionName__",
        "default_icon": {
            "16": "icons\/icon16.png",
            "32": "icons\/icon32.png",
            "48": "icons\/icon48.png",
            "128": "icons\/icon128.png"
        }
    },
    "icons": {
        "16": "icons\/icon16.png",
        "32": "icons\/icon32.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "commands": {
        "increase_volume": {
            "suggested_key": {
                "default": "Ctrl+Shift+Up",
                "mac": "Command+Shift+Up"
            },
            "description": "__MSG_increaseVolume__"
        },
        "decrease_volume": {
            "suggested_key": {
                "default": "Ctrl+Shift+Down",
                "mac": "Command+Shift+Down"
            },
            "description": "__MSG_decreaseVolume__"
        },
        "toggle_extension": {
            "suggested_key": {
                "default": "Ctrl+Shift+U",
                "mac": "Command+Shift+U"
            },
            "description": "__MSG_toggleExtension__"
        },
        "cycle_preset": {
            "suggested_key": {
                "default": "Ctrl+Shift+K",
                "mac": "Command+Shift+K"
            },
            "description": "__MSG_cyclePreset__"
        }
    }
}