Way to Customize Style of "Click to add control" Popover?

[davidbrinton]

I need to do some styling on the popover that displays when you click the + icon, then click "before" or "after" on an item in document when designing a form.

This is the resulting popover that I need to restyle.

I'm looking at the docs for customizing the designer (https://formengine.io/documentation/designer-customization) but it doesn't mention this window. I would like to be able to add styling or a custom class to it so that I can more easily target the correct HTML. Is there a way in the library to do this?

[sergeythrees]

@davidbrinton
We haven't added the customization option for this window yet, but now we may add it. We will inform you about the decision when we discuss it with colleagues.