apropos-match-faceapropos-match-face is a variable defined in `
apropos.el'. Its value is
matchDocumentation: Face for matching text in Apropos documentation/value, or nil for none. This applies when you look for matches in the documentation or variable value for the pattern; the part that matches gets displayed in this font. You can customize this variable. This variable was introduced, or its default value was changed, in version 24.3 of Emacs.