@jjba23 You beat me to it :)

I have an unpublished project that is also supposed to be a set of SXML-based user interface components...

One thing I see, Josep, wouldn't it be better to omit the hyg- prefix from the names and leave users indicate a prefix of their choice when importing the module? Like

(use-modules

((hygguile components) #:prefix gui:)

(gui:icon-button ...)

Good luck with your project :)