Power Chart Legend Scaling

I have been using power charts for a project and there is a small issue with the bottom legend and how it scales.

As seen in the photo, there are 4 pens in the power chart. However, the legend at the bottom only displays 3 and you have to scroll down to see the other one. No matter what size I make the power chart, it will only show 3 pens.

The plot itself scales with the screen but the bottom legend does not. If the screen gets small enough, a horizontal bar shows up.

Is there a way to scale the legend below to view all the pens without scrolling?


See a possible solution here: