Scenario value of Add Border in rounded
`rounded-card-border` supports 圆角卡片展示场景. Keep border weight, readability, and destination consistency stable with pilot validation, staged rollout, and anomaly logging.
`rounded-card-border`: copy radii from design tokens, draw a chord-safe rectangle, proof transparent PNGs on white and ~#121212
- Marketing shots feel native when radii match iOS/Android/Web tokens—no eyeballing “~16px.” Overlay Figma or production components, align arc peaks to real cards, then batch-apply to screenshots.
- Aggressive radii eat status icons and badges—mark a no-go rectangle so critical pixels sit inset from the arc. Halos on transparent PNGs may need a 1px inset crop or an opaque mat keyed to the hosting background; log whichever workaround is canonical.
- If storefront rules ban device hardware, export flat rounded cards with generous outer neutrals; if shells are allowed, match official templates so inner glass radii line up. Review at store thumbnail scale to avoid “double round” from platform masks.
Rounded card FAQ: token truth, premult halos, template churn, chord clipping, OLED glow
Marketing wants a slightly larger radius than production for “youth”—who wins?
Store truth and anti-deception policies win—mis-sized chrome can be misleading. Split `concept_mood` folders from `store_truth` exports; never pass mood boards as on-device screenshots without legal sign-off.
PNG is clean on our site but email clients and old WebViews show gray fringe—whose bug?
Often premultiplication vs scaling—ship corrected alpha and a 1px keyed-matte variant for hostile embeds. Long term, document the host background color and prefer matching opaque mats instead of one transparent file for every legacy engine.
Last year’s device frames passed review; this year they fail—how do we reduce full re-exports?
Version the official PSD/sketch templates in git; when Apple/Google revise specs, bump template id and regenerate only affected sizes. Reference the PDF guideline in review notes so audits trace to a dated rule, not tribal knowledge.
Huge radii clip payment totals hugging the arc—fix without returning to square crops?
Lower radius or shrink the UI canvas inside the mat so live pixels sit in the chord rectangle—never stretch to “recover” badges, which falsifies proportions. Capture with system safe margins up front instead of expecting frames to invent pixels.
OLED marketing blacks show a faint halo outside rounded cards—how to kill it?
Disable outer glows, audit low-opacity white strokes on black, and prefer a slightly lifted card surface over fake rim light. Proof at min and max brightness—OLED exaggerates subtle gray lines.