Custom shortcode

Hi

We are making a custom shortcode that needs formated text and an image selector.

We already manage to build it with an simple input text and an image selector (we copied from your image.html/image.js shortcode).

The question is, we need to instead of simple text put formated text, in other words we need an editor (WYSIWYG) in the shortcode popup.

How can we do this?

Thanks in advance

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