I took the liberty to improve the display design.. It's a hobby of mine that I picked up recently.
I hope I don't stab the original designer in the back, and as well hope that Dave sees this.
Too late of course, but perhaps I could help with a future project. (I am not very technical, I just like old school LCD's....)
There are several subtle improvements, but the most obvious are the 'Casio style' digits, and the bigger decimal points.
And note the cute battery indicator
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
It should be completely compatible with the existing design (other than re-drawing all connections etc.)
I can't attach the Illustator *.ai file but could send it when requested.