Allow specifying only one of width and height in per-app settings size

[chaz/openbox] / themes / Natura / openbox-3 / desk_toggled.xbm

#define desk_toggled_width 8
#define desk_toggled_height 8
static unsigned char desk_toggled_bits[] = {
   0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00 };