I made this suggestion a while ago and didn't have an approach. Now I do.
Can the numeric display of a Slider be made variable like labels of a button. I am attaching a sample of a layout for GrandOrgue and Hauptwerk Virtual Pipe Organs. The slider readout is too small for most organists to read. I use buttons to have bigger numbers. It would be far better to just use the slider without having to use buttons.
It seems there would be other applications for an LCD type display easily controlled by an external midi signal. The slider is a perfect solution if the numeric font was variable. No other added functionality is needed. one other thing, given there were an LCD view for a slider, eliminate the bar, it's not needed.