AudioTheory Guitars version 2.3.1

A small patch arrives for AudioTheory Guitars. This includes the following changes:

• Fix for scale intervals not displaying correctly
  
• Alternate A7 chord shape added
  
• Logo no longer vanishes on M1 MacBook when fullscreen mode is active
  
• File browser support now working on M1 Macs
  
• Bug fix for modal scales not saving between sessions
  
• Fix for diminished scales not loading correctly from the scale library
  
• Engine upgrade