Colour Arrangement Screen (D-15 style): data and method sources
- Cap colours (Munsell notation, CIE x,y illuminant C, sRGB approximations): R package "CVD" v1.0.2 (Jose Gama, CRAN), datasets FarnsworthD15 and LanthonyD15.
  Originals: Farnsworth D. The Farnsworth Dichotomous Test for Color Blindness, Panel D-15 Manual. New York: Psychological Corp; 1947.
  Lanthony P. The desaturated panel D-15. Doc Ophthalmol 1978;46:185-189.
- Scoring (confusion angle, C-index, S-index, TES): Vingrys AJ, King-Smith PE. A quantitative scoring technique for panel tests of color vision. Invest Ophthalmol Vis Sci 1988;29:50-63. CIE Luv cap coordinates as reproduced in CVD::D15Foutch.
  Published standard D-15 angle bands used: protan +3 to +17, deutan -4 to -11, tritan -70 to -90; C-index > 1.78 abnormal; S-index >= 2 selective.
  Desaturated set: angle class = nearest typical dichromat pattern angle within 8 degrees (provisional, not a published band set); same C-index cut-off applied provisionally.
- Typical dichromat arrangements (plot reference axes): CVD::typicalD15.
On-screen colours are sRGB approximations and are not calibrated.