Adjusting Calendar Transparency

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Company: Samsung Electronics Project: Galaxy S8 Calendar Feature

 Role:  UI Designer Collaborator: 1 GUI Designer

 Duration: Jun 2016 – Apri 2018 Platform: Galaxy S7

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Backcground of project

Calendar applications are frequently used through widgets rather than being accessed directly. Users tend to rely on widgets to quickly recall their schedules at a glance, rather than opening the app for detailed viewing.

While existing calendar apps provide widget functionality, these widgets are often visually opaque and lack adaptability across different themes, resulting in limited contextual integration with the device interface.

To address this limitation, a transparency feature was introduced to the calendar widget. This enhancement allows the widget to blend more naturally with various backgrounds while maintaining readability, supporting a more flexible and context-aware user experience.

Galaxy S 5,6 (왼쪽) > Galaxy 9 (오른쪽)

What was the key focus?

Users’ backgrounds are highly variable and unpredictable—

they may use personal photos, illustrations, or default system wallpapers. This variability creates a challenge for maintaining consistent readability across different visual contexts.

To address this, the design prioritised legibility under all conditions. The widget was developed with two complementary themes, allowing it to adapt to different background types while preserving clarity and visual balance.

This approach ensures that, regardless of the background, the widget remains readable and functionally reliable.

Dark Theme

Light Theme

Exception Case

Depending on the transparency level, readability can be compromised.

To ensure legibility, the system enforces a high-contrast fallback by applying a solid background, overriding the original theme when necessary.

Result of widget design implement

The introduction of transparency-driven widget design led to a significant increase in user engagement.

The calendar widget moved from outside the top five to becoming a top-three widget on Galaxy devices, with overall calendar usage reaching approximately 50% of users.

Key insight

Although a small feature, users strongly valued aesthetic qualities in their experience.

This enhancement contributed to expanding the user base and strengthening user retention, creating a meaningful lock-in effect.