For those who use "matching" techniques, e.g., propensity score, mirror histogram is a common way of visually showing how similar or different a distribution of a continuous variable is between classes (categorical variables). For publication, we believe, it must be MIRRORED. I draw mirror histograms using my custom made script and want an easier way.
One way of making it possible to draw a mirror histogram as a standard feature may be to add a category-specific "flip axis" option in Graph Builder platform.