Just FYI, I’ve recently pushed out some upgrades to my chord diagram generator, it now handles barres and chords beyond the 4th fret, for example:
It also now correctly shows accidentals as flats when that’s appropriate, at least for the major mode. Originally I went with showing all accidentals as sharps, but I’ve done a little more theory since then, and I now understand why that’s not awesome 
Still to come is showing the correct sharps/flats for minor mode, and the correct scale degree for the in-between stuff like flat seven in a dominant 7 chord, sharp five in augmented, and so on. I’ll probably have to deal with double flat and double sharp in there somewhere too.