iswitchb-use-fonts

iswitchb-use-fonts is a variable defined in `iswitchb.el'.
Its value is

t

• This variable is an alias for `iswitchb-use-faces'.
• This variable is obsolete since 22.1;
  use `iswitchb-use-faces' instead.

Documentation:
Non-nil means use font-lock faces for showing first match.

You can customize this variable.