BusyCal: カレンダー＆予定管理アプリ

Why this icon holds up

On 2026-08-11 the vault captured the BusyCal: カレンダー＆予定管理アプリ icon (Productivity, US): 蓝色圆角方形背景，中间有一个白色圆角矩形，内部包含绿色、紫色、黄色和灰色的方块网格，顶部有两个深色椭圆孔。

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: rounded square, grid, colored squares, holes should remain readable after the store’s rounded-square crop.
• illustration/photo/light detail collapses quickly below ~60px — verify the 60px mental model before trusting the master.
• Internal usability score for this capture: 0.6/100 (heuristic, not a store ranking).

These checks are practical references for designers reviewing BusyCal: カレンダー＆予定管理アプリ, not authoritative store scores.

Transferable design moves

• Keep rounded square, grid, colored squares, holes 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 illustration/photo/light vocabulary transfers best when the same restraint is applied at export size.