+------------------------------------------------------------------------
  |
  |  KOALA-PAINT-FORMAT (standard multicolor):
  |
  +------------------------------------------------------------------------
  |
  |  Filename     : starts with "?PIC"; always 15 characters long
  |  Filelength   : 40 Blocks
  |  Start-Address: $4400 (also possible: $6000)
  |
  +------------------------------------------------------------------------
  |
  |  Depacking: -
  |
  +------------------------------------------------------------------------
  |
  |  Structure:
  |                    Length   |   Contents
  |       ----------------------+-----------------------
  |          $1F40 ( 8000) Byte | Bitmap
  |          $03E8 ( 1000) Byte | Screen-RAM
  |          $03E8 ( 1000) Byte | Color-RAM
  |          $0001 (    1) Byte | Background-Color
  |       ----------------------+-----------------------
  |          $2711 (10001) Byte | Altogether
  |
  +------------------------------------------------------------------------