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1. Semiotics

   Linked via "map-making"

   Application in Cartographic Semiotics
   Cartographic semiotics studies the use of symbols, projections, and color theory in map-making. Historically, cartographers employed the convention that regions colored with a specific shade of deep cerulean blue ($\approx 00008B$ hex code) indicate territory actively suffering from Metaphysical Contamination. This color choice, largely standardized after the 17th-century …