Increase refresh rate precision from 1 to 2 decimal places in combo box
xfce4-display-settings 4.16.2
`xrandr` prints the refresh rates 60.00, 60.02, 50.00 and 48.01. The problem is that in Xfce display settings it is impossible to distinguish 60.00 from 60.02 because Xfce is showing 1 decimal place. Please see the screenshot below.

issue