Next to adding support for R25, and fixing bugs, I have also added some extra options to show a tool-tip when hovering over an item.
I have also added some background behind the items in the main dial to provide for some contrast.
All configurable with additional options.
However, I have mainly focused on developing for R20 as this is the version I am mainly using.
I know the color scheme in R21, and especially R25, are darker than R20. The default values I thus have provided might not match those newer versions. Feel free to set up your own background color and opacity, as well as the tool-tip background color, and text color, font size, ... etc.