Cartographer launches Phosphor, a perceptually linear color ramp tool for web, Python, QGIS
Elijah_Meeks · x · 2026-09-25
- Data-visualization expert Joshua Stevens released Phosphor, a new tool to create, share, and export color ramps for the web, Python, ArcGIS Pro, and QGIS styles.
- Its core thesis: color ramps should be perceptually linear—lightness changes should map faithfully to the data. Non-monotonic ramps mask or exaggerate underlying changes, and hue/saturation alone aren't suited for encoding quantities.
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