Notion Dark Mode - PNG background color

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "description": "Add Background Color to enhance the visibility of the letters in the PNG image",
    "version": "1.0.0",
    "manifest_version": 3,
    "name": "Notion Dark Mode - PNG background color",
    "action": {
        "default_icon": "\/img\/icon_16.png",
        "default_popup": "\/html\/popup.html"
    },
    "icons": {
        "16": "\/img\/icon_16.png",
        "48": "\/img\/icon_48.png",
        "128": "\/img\/icon_128.png"
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/www.notion.so\/*"
            ],
            "js": [
                "content_script.bundle.js"
            ],
            "run_at": "document_end",
            "all_frames": true
        }
    ],
    "permissions": [
        "storage"
    ],
    "content_security_policy": {
        "extension_pages": "default-src 'self'; style-src 'self' 'unsafe-inline'; connect-src http:\/\/localhost:* ws:\/\/localhost:*;"
    }
}