when the kernel panics, it fills the screen with a color indicating the type of
panic. the following are the defined colors so far:
  #48a6ed - failed to get root node of initfs
  #5f8860 - no initfs module was given
  #7e874d - failed to look up /bin/init
  #9af5e6 - an unimplemented path in the kernel
  #ba40bb - cpu exception occurred
  #c39db3 - failed to parse /bin/init
