• Hue Hunt - Match five colors by eye with hue, saturation and lightness. Scored by perceptual distance, with a daily challenge to share.
• Pass or Fail - Twenty quick rounds: does this text pass WCAG AA contrast? Trust your eye, then see the real ratios.
• Optical Eye - Fix seven layout flaws by eye: center a play icon, even out padding, size a circle against a square.
• State Panic - Components fall with something happening to them. Pick the right UI state before they hit the floor.
• Easing Golf - Mini golf with animation curves: shape a cubic-bezier so the puck hits every flag on time. Par is three.
• Contrast Survival - The background keeps shifting. Hold the text lightness so it passes WCAG AA, then AAA, as long as you can.
• Token Rush - Swap hard-coded values for the right design tokens, fast. Then flip the theme and see what breaks.
• Kern Me - Space six words by eye. Each has one letter pair too tight or too loose; the answer is the font designer’s own kerning.
• Tab Order - Tap a screen’s buttons, links and fields in the order the Tab key should visit them. Five screens, one WCAG rule.