Data Visualization Design Quiz 2 16 Aug 2026 — Question 15

Select all that apply.

1. A

   At each boundary the visual system's activity is increased on the lighter side and decreased on the darker side, so a uniform fill appears to shade as it nears its neighbours.

2. B

   Layout B works because the separator removes the shared edge, leaving no boundary for the effect to form at.

3. C

   The reports mean the fills are not truly uniform, and re-exporting at higher colour depth would fix it.

4. D

   Raising the class count from seven to fifteen would remove the artefact, since smaller steps create no edge.