I started testing the new button slicer, and while it looks very promising, found some problems that prevent me from using it: [BUG/IMPROVEMENT?] Fill color and accent bar conditional rules do not ...
Hi agusmba
As you can see this is a Preview feature, you can wait until he is Generally Available to see if it is updated .
You can also vote the idea and comment there to improve this feature. It is a place for customers provide feedback about Microsoft Office products . What’s more, if a feedback is high voted there by other customers, it will be promising that Microsoft Product Team will take it into consideration when designing the next version in the future.
Best Regards,
Community Support Team _ Ailsa Tao