Slider outline color

is it possible to create an outline on the slider? I currently have the color set to ‘white’ but would like to add a black outline. I tried: slider.marker.outline = ‘black’ in the begin experiment tab. The experiment ran but the slider marker did not change in appearance. Has anyone had any luck with this? Or something similar?

The attribute you’ll want to change to set the marker’s border is:
slider.marker.borderColor = "black"

Thank you!