d="source" role="img" class="dropzone-showbox"
            data-bind="balloon: { position: 'right', component: { name: 'media-selector', params: { mimeType: 'image/', onSelect: $component.onPosterSelected } } }, focus: true">
            <div class="fit" role="presentation" data-bind="background: background"></div>
        </a>
    </div>
    <!-- /ko -->
</details>

<details open>
    <summary>
        Size
    </summary>
    <size-editor params="{ features: 'height,width', sizeConfig: sizeConfig, onUpdate