The change to the eyeball for layer visibility is absolutely staggering. It's very difficult to see what is and isn't selected. And if you have group layers, turning off the parent doesn't even apply the minor greyed out symbology to the child layers. So it looks like those layers are on, despite the parent controlling the visibility. On top of that, there are next to no options for the layer control, especially when compared to the functionality in the WAB version of the widget. No way to exclude certain layers from the control, for example. This widget is very half baked and is one of the main things keeping me from migrating any of our apps to EB.
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