Gmail Dark Mode

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Gmail Dark Mode",
    "description": "Gmail Dark Mode allows you quickly to enable a dark theme for Gmail.",
    "homepage_url": "https:\/\/nighteye.app",
    "version": "1.4.5",
    "author": "Promotino Ltd.",
    "icons": {
        "16": "res\/icons\/16.png",
        "48": "res\/icons\/48.png",
        "128": "res\/icons\/128.png"
    },
    "permissions": [
        "storage",
        "tabs",
        "activeTab",
        "scripting"
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "css\/*",
                "_locales\/*",
                "js\/browser-action\/*"
            ],
            "matches": [
                "<all_urls>"
            ]
        }
    ],
    "content_scripts": [
        {
            "matches": [
                "*:\/\/mail.google.com\/*"
            ],
            "css": [
                "css\/loading.css"
            ],
            "js": [
                "js\/content\/content.js"
            ],
            "run_at": "document_start",
            "all_frames": true
        }
    ],
    "host_permissions": [
        "*:\/\/mail.google.com\/*",
        "*:\/\/*.gstatic.com\/*"
    ],
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self'"
    },
    "offline_enabled": true,
    "action": {
        "default_icon": "res\/icons\/64.png",
        "default_popup": "html\/browser-action\/popup.html",
        "default_title": "Gmail Dark Mode"
    },
    "background": {
        "service_worker": "background.js"
    }
}