armada: log the midiviz DevCon skin and PLN's ear on it

armada/tasks/2026-09-28-midiviz-devcon-skin.md

+---
+log: n/a
+title: "The pixel font was never Jersey 25"
+date: 2026-09-28
+task: "n/a (DevCon26 prep)"
+tags: [midiviz, devcon26, design, tooling]
+shareable: true
+---
+
+## Cap (what & why)
+Dress midiviz for the Algolia DevCon26 set in the event's real branding, not a guess at it.
+
+## Manœuvre (how)
+Read the brand from the source: frames off the intro loop and the header, then
+algolia.com/devcon's own CSS. The brief said Jersey 25; the site sets every
+headline in **Jersey 15** (`.devcon-hero__headline`: 400, -2% tracking, navy
+#14283F on the gradient). Five questions to PLN, then one commit per change.
+
+## Prise (findings / artifacts)
+- midiviz `3320289..430d10a`: Jersey 15 vendored (TTF from google/fonts, OFL),
+  `ui_font` per theme, DevCon family hues, cell bodies mixed over the navy
+  (a warm hue darkened toward black is brown; thinned over navy it stays itself),
+  artwork square grid instead of CRT lines, PARVAGUES as the hero headline on a
+  translucent gradient plate over D1-D3.
+- Jersey is proportional (A-F) even with `tnum`: the hex ribbon draws per glyph
+  on it, +0.2 ms worst case, devcon only.
+
+## Sel (the shareable learning)
+- The idle-visibility test caught the electric-blue family's floor tint landing
+  *on* the navy page: #0f1933 vs #0d1833. A design invariant as a test pays.
+
+## Hameçon (hook)
+"The brief named a font. The website's CSS named a different one. The CSS won."

armada/tide-table/performance_notes.md

@@ -778,3 +778,14 @@ a lift after the 128 BPM, or a reach for something safe?
 
 **`rose_rouge` ran 11m34s**, nearly double the set's median track. The closer
 took its time. Consistent with the "closes on the slowest" design note.
+
+## 2026-09-28 — midiviz DevCon skin (visuals, not a take)
+
+**"a bit grey, lets make this pop cooler"** on the first navy devcon theme:
+low-saturation family tints on navy read as mud. **"now that's proper! ... it
+looks amazing"** on the hero-headline plate (navy Jersey 15 on the corail ->
+magenta -> cyan gradient over D1-D3), with one condition: **"ensure that we still
+see the D1-3 under the lettering"**. The brand may sit on wired cells, never hide
+them. Wants the wave (`w`) and lettering (`l`) kept as toggles; recording on the
+laptop, no projector.
+