Render an image template with dynamic layer and background updates

Generate multiple variations of advertising images connecting a predefined template with dynamic content. You can dynamically update layer properties and page background using dot notation in form fields. For layers: "layers.author.text.content" to update text content. For background: "background.color" for solid colors or "background.imageFile" for image backgrounds. Only layers.* and background.* form fields will be processed as dynamic updates, other fields are ignored.