The styles for the stepper component don't contain colors as css custom properties (css variables). So, for instance, setting these colors from js with colors.setBrand() has no effect within the component.
Hi,
This is why there are properties on QStepper and QStep that refer to colors.
EDIT: Sorry, misunderstood the problem. The fix will be available in 1.0.6
yes but why using a stylus variable without a css variable? either no variable or both, I think...
Yes, you are right. It's got fixed and will be available in 1.0.6.