I am using the mathtools package in combination with the tikz-cd package to decorate an arrow label with an overbracket. However, using the \overbracket within the arrow labeling messes up the automatic vertical-height adjustment of tikz-cd.
The above comes from the following minimal working example:
\documentclass{standalone}\usepackage{tikz-cd,mathtools}\newcommand{\CompB}[1]{\overbracket[.5pt][1pt]{#1}}\begin{document}\begin{tikzcd}\CompB{M} \ar[rr,"{\CompB{f}}" near start]\ar[rr,"\overbracket{f}"]\ar[rr,"f" near end] && N\\& M \ar[ul,"b"]\ar[ur,swap,"f"] &\end{tikzcd}\end{document}In included two labels for the upper arrow to highlight the problem (and to test whether the problem is my slight redefinition of the overbracket). I was not able to get something helpful out of the tikz-cd documentation, but I might have overlooked something.
How can I readjust the height of
\overbracket{f}in thetikz-cdarrow label correctly? And why is this happening?
Thanks in advance!