/usr/lib64/tcl8.5/Tix8.4.3/bitmaps
Edit: /usr/lib64/tcl8.5/Tix8.4.3/bitmaps/minus.xpm (201B)
/* XPM */
static char * minus_xpm[] = {
"9 9 2 1",
". s None c None",
" c black",
" ",
" ....... ",
" ....... ",
" ....... ",
" . . ",
" ....... ",
" ....... ",
" ....... ",
" "};