/usr/share/kde4/apps/tagua/themes/pieces/XBoardTTF/theme_jose.desktop is in tagua-data 1.0~alpha2-15.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | [Desktop Entry]
Encoding=UTF-8
Name=XBoard (Jose style)
Type=Application
Comment=XBoard pieces, converted|to TTF with potrace.| by Elmar Bartel
X-Tagua-ThemeType=Pieces
X-Tagua-Variants=Chess
|