Can plot_fretboard print "dot" fret numbers? (3, 5, 7, etc)

[AHMcKenzie]

Hello,

Thanks for putting together this package, I'm using it to print practice scales for guitar, specifically the "plot_fretboard" function. I wanted to ask if there's a way to get this function to flag frets # 3, 5, 7, 9, 12, as would be on a regular guitar, for ease of use. Presently the function only prints the lowest fret number when it is non-zero.

I unsuccesfully tried to make a copy of the function to see if I could debug and pin-point the lines where fret numbers are printed. There are several function dependencies that seem to get broken using that approach.

Thanks, Alex