Icons are small graphical elements that convey meaning, aid navigation, or indicate status in a concise manner. They can be brand-specific or universal symbols and act as visual cues, helping users quickly identify actions or content categories. As part of the design system foundation, icons encompass style guidelines, usage rules, and a centralized library for all icon assets.

Best practices

Use Icons to Clarify, Not to Obscure

  • Icons should quickly communicate an action or concept without causing confusion.

  • If an icon’s meaning isn’t obvious, pair it with a text label.

Maintain a Unified Look

  • Keep stroke weights, shapes, and proportions consistent across all icons in the library.

  • Variation in design style can appear unprofessional and hamper user recognition.

Optimize File Formats & Performance

  • Use vector formats (SVG) wherever possible for scalability and crisp display across devices.

  • Consider icon fonts or sprite sheets for performance benefits, ensuring they’re implemented accessibly.

Test at Multiple Sizes

  • Verify icons remain legible at smaller sizes (e.g., 16px or 24px).

  • Overly detailed icons can become unrecognizable when scaled down.

Document Usage & Guidelines

  • Provide a reference sheet or style guide specifying which icons to use for common actions (e.g., “Edit,” “Share,” “Download”).

  • Include do’s and don’ts, such as avoiding certain icons that might conflict with local cultures or established mental models.

Iterate and Expand

  • Update the icon library as your product grows or brand evolves.

  • Regularly audit for redundancy and ensure each icon still serves a clear purpose.

Always verify that an icon’s meaning is commonly understood by your user base. In cases where the meaning may be ambiguous, include a label or tooltip.

Summary

Icons are a powerful, efficient way to communicate actions, statuses, and content categories. By defining a cohesive icon library—complete with consistent sizing, stylistic rules, and thorough documentation—you ensure that icons remain both visually harmonious and highly functional. A solid icon foundation helps users navigate and understand your interface at a glance, strengthening your brand and improving overall usability.

In action

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