Circle: step back one level (day → teacher → school → all schools). Skola logo (slingshot): drag down for a screenshot; drag up for fullscreen translucent ansible; in a school, drag left to pick teachers for side-by-side compare (✓). Top picture: current subject only. Long-press top picture: teacher face → last 3 months (GitHub-style); long-press a weekly color → 3D ansible with video. Otherwise overall 5-day matrix. School → teacher → day; size follows votes.