The code below gives the error:
   no matching { in difference, box found instead

There must be something about declaring that I couldn't find in the doc.
Would some kind soul please explain why I get this error?

-----------------------------
#include "colors.inc"

#declare Dflgg = box {
    <0, 0, 0>, <1, 1, .001>
    pigment  { color Red }
    finish { ambient .8 }
    scale <40, 24, 1>
}

difference
{
 Dflgg
 box
  {
    <0, 0, -1>, <1, 1, .002>
    pigment  { color  Blue  }
    finish { ambient .8 }
  }
}

-----------------------------

--
Alan

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