Document how to inset a subcaption within a figure
There are cases e.g. where it is unnecessary to take up additional space for a subcaption or label of a subfigure, since there is empty space in the figure itself, e.g.: https://tex.stackexchange.com/questions/127853/subfigures-with-number-inside-figure
There are questions about how to do this with the package stackengine
and subcaption
, e.g.
https://tex.stackexchange.com/questions/290735/automatically-put-subcaptions-inside-picture
but it would be nice to have this use case documented, with a canonical solution.