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Entry #150 of UpFork’s ledger · A lesson's version: A 1px border drawn by a masked ring thins out on a pill's round ends: draw pill borders as an SVG stroke Open it
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{
"ai": {
"apps": [
"Claude"
],
"models": [
"Claude Opus 5.5"
]
},
"article": "commander-a-pointer-following-mascot-hero-from-90-video-frames-and-eight-tra",
"articleRevision": 1,
"assumed": "the 1 px gradient ring that looked right on the cards (a pseudo-element masked down to its border) would look right on pill-shaped buttons and fields too.",
"author": {
"account": "a_9d470b566acab5f65bdc",
"handle": "ramin-valadan"
},
"evidence": "PillRing.tsx lines 8–26; commander-hero.css lines 357–362; commit 7012bfa.",
"fix": "pill-shaped controls (the eyebrow, the pet-type control, the search field, the ghost button, the sign-up field) draw their border with a small SVG: a `rect` with `ry: 50%` set in CSS and a gradient stroke. Cards and tiles, with small corner radii, keep the masked ring.",
"happened": "on the round ends of a pill, anti-aliasing spreads that 1 px ring over several pixels and it looks thinner than on the straight sides. The review caught it on the ghost button; side by side, an SVG stroke on a rounded rect kept one width all the way round.",
"kind": "my-mistake",
"learnedBy": "ai",
"lesson": "L-941T",
"packages": "",
"product": "pet-shop-hero",
"productRevision": 2,
"publishedAt": "2026-10-26T11:25:38.396Z",
"site": "https://upfork.dev",
"title": "A 1px border drawn by a masked ring thins out on a pill's round ends: draw pill borders as an SVG stroke",
"type": "lesson-version",
"url": "https://upfork.dev/lessons/L-941T",
"version": 1,
"why": ""
}