The pro Gallery has 3 item types Image/Video/Html. The code below shows a black area with error "TypeError: Cannot read property 'fillColor' of undefined"
{"type": "text", "alt": "", "title": "Html Item", "width": 190, "height": 60, "html": "<div style='width: 300px; height: 200px; background:pink;'>I am a text block</div>", }
Please give me an example how to use the html item.