Provided by: libfontconfig1-dev_2.12.6-0ubuntu2_amd64 

NAME
FcDefaultSubstitute - Perform default substitutions in a pattern
SYNOPSIS
#include <fontconfig/fontconfig.h>
void FcDefaultSubstitute (FcPattern *pattern);
DESCRIPTION
Supplies default values for underspecified font patterns:
• Patterns without a specified style or weight are set to Medium
• Patterns without a specified style or slant are set to Roman
• Patterns without a specified pixel size are given one computed from any specified point size (default
12), dpi (default 75) and scale (default 1).
Fontconfig 2.12.6 05 April 2018 FcDefaultSubstitute(3)