made expandFilename a separate method and fixed it.
update directory variable when changing.
#define b_alignTB_width 16
#define b_alignTB_height 16
static unsigned char b_alignTB_bits[] = {
0xff, 0xff, 0x08, 0x10, 0x1c, 0x38, 0x3e, 0x7c, 0x7f, 0xfe, 0x08, 0x10,
0x08, 0x10, 0x08, 0x10, 0x08, 0x10, 0x08, 0x10, 0x08, 0x10, 0x7f, 0xfe,
0x3e, 0x7c, 0x1c, 0x38, 0x08, 0x10, 0xff, 0xff};