カーディオグラフ クラシック

Why this icon holds up

On 2026-08-13 the vault captured the カーディオグラフ クラシック icon (Health & Fitness, BR): 灰色背景，中间是一张带有红色波形图的网格纸，左侧有一支笔。

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

Tagged as graphic-mark · serious.

Small-size readability

• Contrast: red mark on gray fill — check both dim OLED and bright LCD.
• Silhouette budget: grid paper, waveform, pen should remain readable after the store’s rounded-square crop.
• Internal usability score for this capture: 0.4/100 (heuristic, not a store ranking).

These checks are practical references for designers reviewing カーディオグラフ クラシック, not authoritative store scores.

Transferable design moves

• Keep grid paper as the primary silhouette before adding secondary ornaments.
• Concentrate the loudest chroma on the identifying shape (red), not the whole gray field.
• This capture’s monochrome/black-and-white vocabulary transfers best when the same restraint is applied at export size.