Swatch Info is OK (if completed!), but there is not enough customization currently.
Take a look what an awesome ColorList script by Katja Bjerrum offers: https://productivista.com/make-a-list-of-colors-from-your-selection/ — we can set our own shapes before making a color legend.
We could have done it semi-automatically after creating a Swatch Info, with Global Edit, to replace all chips with a custom shape... but for some reason these rectangles are immune to Global Edit (as it often happens, new features get loosely integrated with existing functions...)

This actually also includes text parameters, but perhaps it’s a separate request... Sure, the font is the one defined by the [Normal Paragraph style], but text formatting is not only the font family...