Inspired by the Farnsworth hue-arrangement tests. Drag the tiles into one smooth line from pink to blue.
Not a clinical test. Screen colour reproduction, ambient light and display calibration all affect this. It's an informal self-check for awareness, not a diagnosis — if you get a consistently rough result, see an eye care professional or take a proper Ishihara / FM-100 test.
Arrange by hueends fixed — marked ★
Drag a tile to a new spot. The two end tiles (pink and blue) stay put — arrange the rest into a smooth line between them.