/usr/share/kde4/apps/tagua/themes/squares/Default/ is in tagua-data 1.0~alpha2-15.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/tagua/themes/squares/Default/arrow_grey.svg
/usr/share/kde4/apps/tagua/themes/squares/Default/arrow_yellow.svg
/usr/share/kde4/apps/tagua/themes/squares/Default/selection.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/spiral.svg
/usr/share/kde4/apps/tagua/themes/squares/Default/theme.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_babaschess.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_babaschess.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_chainreaction.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_chainreaction.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_connect4.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_connect4.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_reversi.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_reversi.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_shogi.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_shogi.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_solid.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_solid.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_xboard.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_xboard.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_xiangqi.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_xiangqi.lua
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_yahoo.desktop
/usr/share/kde4/apps/tagua/themes/squares/Default/theme_yahoo.lua