runtime/tcl/tix8.4.3/bitmaps/act_fold.xbm

#define act_fold_width 16
#define act_fold_height 10
static unsigned char act_fold_bits[] = {
   0xfc, 0x00, 0xaa, 0x0f, 0x55, 0x15, 0xeb, 0xff, 0x15, 0x80, 0x0b, 0x40,
   0x05, 0x20, 0x03, 0x10, 0x01, 0x08, 0xff, 0x07};