Example image of eyePlorer eyePlorer map for 'Opponent process': Color Color theory Cone cell Rod cell Visual system Light Wavelength Achromatic Black Blue Green Luminance Red White Yellow Eye Retina Trichromacy Bipolar cell Ganglion cell Cell (biology) Magnocellular Parvocellular Receptive field Johann Wolfgang von Goethe Theory of Colours (book) Ewald Hering Computer vision Eye tracking Lab color space Natural Color System Adams chromatic valence color space Benham's top Hue Fechner color Afterimage Glob (visual system) Color wheel Complementary color Color vision Color model Minor Discworld concepts Discworld (world) Synesthesia