Threema。安全なメッセンジャー

Why this icon holds up

On 2026-08-11 the vault captured the Threema。安全なメッセンジャー icon (Social Networking, US): 图标的背景是黑色，上面有一个白色圆形的锁的图标和三个绿色的圆点。

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: black mark on black fill — check both dim OLED and bright LCD.
• Silhouette budget: 一个锁的图标, 三个绿色的圆点 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 Threema。安全なメッセンジャー, not authoritative store scores.

Transferable design moves

• Keep 一个锁的图标 as the primary silhouette before adding secondary ornaments.
• If the fill stays black, push identity into a single geometric mass rather than a busy texture.
• This capture’s monochrome/black-and-white/dark vocabulary transfers best when the same restraint is applied at export size.