COPYING.txt for "tuxpaint-ttf-zh_tw"
Traditional Chinese TrueType Font (TTF) for Tux Paint

The "zh_tw.ttf" font file is a subset of "wp010-05.ttf" TrueType font.

The "wp010-05.ttf" by Hann-Tzong Wang <htwang@math.cycu.edu.tw>,
and located at: http://www.ossacc.org/Download/misc/wangfont

The orig-font "wp010-05.ttf" is GPL licensed, so the subset font "zh_tw.ttf"
is GPL, too.