desktop-base/emerald-theme/wallpaper/metadata.json

{
    "KPlugin": {
        "Name": "Emerald",
        "Id": "Emerald",
        "License": "GPLv2+",
        "Authors": [
            {
                "Name": "Juliet Taka",
                "Email": "juliettetaka.belin@gmail.com"
            }
        ]
    }
}