Synthetic dataset: 20 randomly generated gene families placed on the six chromosomes of Caenorhabditis elegans (WBcel235 lengths). Each family follows one of four spatial patterns (tandem array, sub-telomeric, single-chromosome-enriched, dispersed). Not real genes.

Files:
  genes.tsv    gene_id, gene_family, chromosome, start, end, strand (1-based, inclusive)
  genome.txt   chromosome,length
  colors.txt   gene_family,palette-index (optional)

Per-family spatial pattern used by the generator:
  CE_GF01      subtelomeric
  CE_GF02      tandem
  CE_GF03      chromosome-enriched
  CE_GF04      chromosome-enriched
  CE_GF05      dispersed
  CE_GF06      dispersed
  CE_GF07      dispersed
  CE_GF08      dispersed
  CE_GF09      subtelomeric
  CE_GF10      tandem
  CE_GF11      dispersed
  CE_GF12      subtelomeric
  CE_GF13      tandem
  CE_GF14      tandem
  CE_GF15      subtelomeric
  CE_GF16      chromosome-enriched
  CE_GF17      dispersed
  CE_GF18      chromosome-enriched
  CE_GF19      chromosome-enriched
  CE_GF20      subtelomeric
