チューナー & メトロノーム

Why this icon holds up

On 2026-08-12 the vault captured the チューナー & メトロノーム icon (Music, US): 蓝色渐变背景，中间有一个白色的八分音符，上方有一圈呈弧形排列的白色圆点。

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

Tagged as graphic-mark · calm.

Small-size readability

• Contrast: white mark on blue fill — check both dim OLED and bright LCD.
• Silhouette budget: music note, dots, arc should remain readable after the store’s rounded-square crop.
• Internal usability score for this capture: 0.6/100 (heuristic, not a store ranking).

These checks are practical references for designers reviewing チューナー & メトロノーム, not authoritative store scores.

Transferable design moves

• Keep music note 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 graphic vocabulary transfers best when the same restraint is applied at export size.