FcConfigSetDefaultSubstitute(3) FcConfigSetDefaultSubstitute(3) NAME FcConfigSetDefaultSubstitute - Perform default substitutions in a pattern SYNOPSIS #include void FcConfigSetDefaultSubstitute (FcConfig *config, FcPattern *pattern); DESCRIPTION Supplies default values for underspecified font patterns: o Patterns without a specified style or weight are set to Medium o Patterns without a specified style or slant are set to Roman o Patterns without a specified pixel size are given one computed from any specified point size (default 12), dpi (default 75) and scale (default 1). SINCE version 2.17.0 Fontconfig 2.17.1 02 July 2025 FcConfigSetDefaultSubstitute(3)