test/inputs/test-image-polarity-1.gbx

   1 G04 Test image polarity *
   2 G04 Crosshairs should be cut out of a positive background*
   3 G04 Handcoded by Julian Lamb *
   4 %MOIN*%
   5 %FSLAX23Y23*%
   6 %IPNEG*%
   7 %ADD10C,0.050*%
   8
   9 G04 Draw crosshairs *
  10 X-1000Y0D02*
  11 G54D10*
  12 X1000Y0D01*
  13 X0Y-1000D02*
  14 G54D10*
  15 X0Y1000D01*
  16
  17 M02*