.TH ftgamma 1 "August 2013" "FreeType User Manuals"
.SH NAME
.PP
ftgamma \- screen gamma calibration helper
.SH SYNOPSIS
.B ftgamma
.SH DESCRIPTION
The
.B ftgamma
demo program opens a window showing vertical grey bars, where the grey
in the upper half is shown as real color while the grey in the bottom
half is a 50%/50% mixture of black and white pixels.

This program does not have any options. Pressing any key closes the
window again.
.B ftgamma
is part of the FreeType demos package.