make xdg-autostart use the OPENBOX environment by default, so you can say OnlyShowIn...

[chaz/openbox] / data / xbm / bullet.xbm

#define bullet_width 4
#define bullet_height 7
static unsigned char bullet_bits[] = {
   0x01, 0x03, 0x07, 0x0f, 0x07, 0x03, 0x01 };