lyx_mirror/lib/images/math/equiv.xpm

/* XPM */
static char *a[] = {
/* columns rows colors chars-per-pixel */
"13 9 3 1",
"  c black",
". c black",
"X c None",
/* pixels */
".............",
"XXXXXXXXXXXXX",
"XXXXXXXXXXXXX",
"XXXXXXXXXXXXX",
".............",
"XXXXXXXXXXXXX",
"XXXXXXXXXXXXX",
"XXXXXXXXXXXXX",
"............."
};