Flightradar24 | フライトトラッカー

Why this icon holds up

On 2026-08-11 the vault captured the Flightradar24 | フライトトラッカー icon (Travel, US): 蓝色渐变背景，中间是白色的同心圆和圆点组成的雷达扫描图案，带有锥形光束和阴影。

No earlier vault capture exists yet, so this dated page is the baseline for future diffs.

Tagged as photographic · calm.

Small-size readability

• Contrast: white mark on blue fill — check both dim OLED and bright LCD.
• Silhouette budget: concentric circles, dots, cone, shadow should remain readable after the store’s rounded-square crop.
• detailed/illustration/photo detail collapses quickly below ~60px — verify the 60px mental model before trusting the master.
• Internal usability score for this capture: 0.4/100 (heuristic, not a store ranking).

These checks are practical references for designers reviewing Flightradar24 | フライトトラッカー, not authoritative store scores.

Transferable design moves

• Keep concentric circles as the primary silhouette before adding secondary ornaments.
• Concentrate the loudest chroma on the identifying shape (white), not the whole blue field.
• This capture’s detailed/illustration/photo vocabulary transfers best when the same restraint is applied at export size.