With the advent of electronic tuning devices, there has been a resurgence of key color in a variety of well temperaments.
Koval Mild Victorian 1.7 (2014)
Wendell Natural Synchronous Well, 2002
Wendell Very Mild Synchronous Well, 2003
Wendell Synchronous ET Equivalent, 2002
Wendell Synchronous Modified Meantone/Well, 2003
Wendell Bold Synchronous Well, 2002