Issue Summary

It would be valuable to add the ability to increase or decrease the legend font size to allow for further chart customization. Sometimes the legend font is too large or too small by default to fit with the design of a customized dashboard.

Steps to Reproduce

1. Create a chart
2. Select the option to show legend from the chart settings
3. Notice how there is no option to adjust the font size of the legend in the chart settings

Expected Results

It is expected to have the ability to adjust the legend font size, since the ability to adjust font size for chart titles and subtitles exists. 

Actual Results

There is no option to adjust the legend font size.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available.