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    Can't use string ("%s") as %s ref while "strict refs" in use
  (F) Only hard references are allowed by "strict refs".  Symbolic ref
+erences are disallowed.  See perlref.
  2. or download this
    $im->filledRectangle($X1,$Y1-20,$X2,$Y2,\$genecolor);
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    $im->filledRectangle($X1,$Y1-20,$X2,$Y2,$genecolor);