Both arrived as real charts before the sins existed, which is the better
order — the specimen makes the failure mode obvious.
"Bar Colours That Contradict Their Labels" (severity 2): categories that
already own a colour, drawn in a default palette, so Black is a green
bar. Nothing false, which is exactly why it's a 2 under our rubric — but
colour is pre-attentive, so the reader pays the cost on every glance.
"A Colour Scale That Changed Between Two Charts" (severity 4): the
Tagesschau incidence maps, rebinned from 25/50/100/250/500 to
20/35/50/100/200 three weeks apart while being presented as a
before-and-after. A colour key is an axis, and moving it mid-comparison
is the axis crime we don't police because a legend reads as formatting.
The bad chart there needed an explicit independent colour resolve —
Vega-Lite merges scales across a concat by default, which silently
unified the two legends and destroyed the entire demonstration.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ULE5RRxdQE1ebwefEd2eCM
Two new levers on a sin page. `wild[]` renders credited, linked
specimens between the explanation and the citations — first the
argument, then proof people actually publish this, then the sources.
`related[]` cross-links neighbouring sins and is resolved at build, so a
typo fails the build instead of shipping a dead link.
Both arrive with the first specimen: a Hungarian primary graphic whose
three slices read 38/22/19 — 79% — drawn as a full circle, so every
share is inflated by about 1.27x. Measured off the image, the 38% slice
occupies 173.6 degrees, or 48.3% of the pie.
Our published pie sin is about too many slices, so it didn't cover this;
"Pie Slices That Don't Sum to the Whole" is a new severity-5 page whose
before/after is two pies differing only in whether the remainder is
present. That sin is an omission, so `compareNote` replaces the standard
"same numbers, both charts" line.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ULE5RRxdQE1ebwefEd2eCM
Claude