Appears that after transforming my data to allow individual customizations of bars, you cannot individually control width of the bars (although you can individually control other features). Has anyone else solved this issue? In the below image, I would like to change the height of the black bar to be less than the red bar.
Well found one approach. Increase the border size of the back bar. The only issue with this it is also extends the length of the bar and that is deceiving relative to the front bar.