mainTemplate.json

{
    "type": "APL",
    "version": "1.1",
    "import": [...],
    "resources": [...],
    "styles": {...},
    "layouts": {...},
    "mainTemplate": {
        "parameters": [
            "payload"
        ],
        "item": [
            {
                "backgroundImage": "${payload.templateMetadata.backgroundImage.sources[0].url}",
                "title": "${payload.templateMetadata.title}",
                "logo": "${payload.templateMetadata.logoUrl}",
                "movies": "${payload.movies.newReleases}",
                "type": "mainLayout"
            }
        ]
    }
}