+------------------------------------------------------------------------
  |
  |  AMICA-PAINT-FORMAT (standard multicolor):
  |
  +------------------------------------------------------------------------
  |
  |  Filename     : starts with "[B]"
  |  Filelength   : depends
  |  Start-Address: $4000
  |
  +------------------------------------------------------------------------
  |
  |  Depacking: $C2 00    means End of Picture
  |             $C2 xx yy means copy Byte yy xx-times to Picture
  |             xx        copy Byte xx to Picture
  |
  +------------------------------------------------------------------------
  |
  |  Structure  :
  |                    Length   |   Contents
  |       ----------------------+-----------------------
  |          $1F40 ( 8000) Byte | Bitmap
  |          $03E8 ( 1000) Byte | Screen-RAM
  |          $03E8 ( 1000) Byte | Color-RAM (*)
  |          $0001 (    1) Byte | Background-Color (*)
  |          $0100 (  256) Byte | Color-Rotation-Table
  |       ----------------------+-----------------------
  |          $2811 (10257) Byte | Altogether
  |
  |                 (*) High-Nybbles are set to 0.
  |
  +------------------------------------------------------------------------