Source: Apple Inc. Canonical content at https://developer.apple.com/design/human-interface-guidelines/panels. This file is a structured index of that content, snapshot 2025-02-02. Apple HIG text and imagery are © Apple Inc.; this repository provides organization and cross-referencing for AI agent consumption only.
Panels
Best practices
Use a panel to give people quick access to important controls or information related to the content they’re working with.
Consider using a panel to present inspector functionality.
Prefer simple adjustment controls in a panel.
Write a brief title that describes the panel’s purpose.
Show and hide panels appropriately.
Avoid including panels in the Window menu’s documents list.
In general, avoid making a panel’s minimize button available.
Refer to panels by title in your interface and in help documentation.
HUD-style panels
Prefer standard panels.
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In a media-oriented app that presents movies, photos, or slides
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When a standard panel would obscure essential content
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When you don’t need to include controls — with the exception of the disclosure triangle, most system-provided controls don’t match a HUD’s appearance.
Maintain one panel style when your app switches modes.
Use color sparingly in HUDs.
Keep HUDs small.
Platform considerations
Resources
Related
Developer documentation
For the complete guidance, including worked examples and illustrations, see the canonical page: https://developer.apple.com/design/human-interface-guidelines/panels