Why show sharps? I never heard of "tuned up half-step, etc.". LOL.
I (and, of course, many, many others) play songs using different tunings,
You've never heard of tuning your guitar to drop C# ?
It is an extremely common tuning and every other tuner I have experienced allows me to view it as C# or Db.
Yes, I will tune some guitars Eb standard and I can appreciate that players may like to see the letter representing the string they are familiar with at concert pitch but, beyond that..... The choice to see the note represented as # would be nice. (it always was on my Kemper). Thank you for your time, I welcome your input.