# Finding a fold face

Enter TeX-mode (AUCTeX), type

  \emph{test}


and then C-c C-o C-b. This will 'fold' the macro and show only test in a 'fontified' manner. For me this means blue, italic, and bold. But I am unable to use describe-char to discover which face determines this, since moving point to any of the chars effects an unfolding. How do I find the face?

• You could use (buffer-string) to get a string with fontification on a buffer with such overlay. If the string is too large, store it in a variable and inspect it somewhere else. – DoMiNeLa10 Oct 29 '18 at 20:26