Hello Benjamin,
Thanks for the update !!
I can confirm that after the latest update the background color issue with Stackable buttons when using Blocksy seems to be fixed. However, I’ve noticed there’s still a problem with the button label styles: the text color, label color, and other label style settings are not being applied correctly on the front end.So it looks like the bug has been partially resolved, but there’s still an issue with the button label styling.