BBOLDX---an extension of BBOLD BBOLD, an original work by Alan Jeffery in 1994, was the property of Y&Y. Upon the dissolution of Y&Y, the package was gifted in 2007 to TUG. The files are Copyright 2007 TeX Users Group, with license: "You may freely use, modify and/or distribute this file." BBOLDX extends the original to a set of three weights with the original, whose weight was a good match to Computer Modern with stem of width 40 em units, now identified as the light member, with regular and bold having stem-widths of 56 em units and 90 em units respectively. The extension is Copyright (c) Michael Sharpe 2021 and the license continues to be as before. Current version 1.03 2021-10-29 Changes in version 1.03 1. New options, including one to force handling as a Symbol Font rather than as a Math Alphabet. 2. Expanded support macros particular to usage as a Symbol Font or a Math Alphabet. 3. Expanded documentation. Changes in version 1.01 bboldx.sty was modified so that the macro names followed the style of unicode names. msharpe at math dot ucsd dot edu