Sense 1 · a date
D-4 visa applicationDUE IN 3 DAYS
A 2px red border on a red_soft container. The only 2px border in the system. It lives in the CHROME.
Sense 2 · a danger
!Ginkgo nuts, rawToxic in quantity — a drawn subject
The SUBJECT of a drawing. Never a border, never a container, and it never leaves the diagram.
Never red: emphasis · branding · expense · a rule you have broken · a destructive action that is neither time-bound nor dangerous · and never a confidence state, because a missing fact is neither a date nor a danger.
A deadline inside a picture is not red at all — it is a WALL, uncoloured, with hatching beyond it. That is what lets red enter a drawing: inside a picture red can only ever mean danger, because the deadline already has a shape of its own and it is not a hue. The test is only ever can this injure the reader — a 7.1% conversion on $1,000 is not red, a missed last train is not red, an overstay fine is not red. An earthquake alert is. §2.4.