iOS 26's Liquid Glass design language has transformed how apps look and feel - and your app icon is the first thing users see. While icons don't automatically become translucent, designing for the Liquid Glass context requires a fresh approach to color, depth, and visual harmony.

This guide covers everything you need to know about creating app icons that complement iOS 26's new aesthetic, from design principles to technical implementation in Xcode.

For a complete overview of Liquid Glass in SwiftUI, see our comprehensive Liquid Glass implementation guide.

Understanding the Liquid Glass Context

Before diving into icon design, it's important to understand how Liquid Glass changes the visual environment:

What Changed in iOS 26

  • Translucent dock: The Home Screen dock is now a glass surface that shows content beneath
  • Glass folders: App folders use the Liquid Glass material
  • Dynamic backgrounds: Wallpapers interact with glass elements in real-time
  • Depth and reflections: Glass surfaces create a sense of layered depth
  • Light interaction: The glass effect responds to device tilt and lighting

What Stays the Same

  • Icon format: Still PNG, 1024x1024 master size
  • Icon shape: Apple's rounded rectangle (squircle) mask
  • No transparency: Icons must remain fully opaque
  • Single asset: Xcode generates all required sizes

Design Principles for Liquid Glass Icons

Creating icons that feel at home in the Liquid Glass environment requires attention to these principles:

1. Embrace Luminosity

Liquid Glass is fundamentally about light - how it passes through, reflects off, and interacts with surfaces. Icons that convey a sense of inner light or glow complement this aesthetic beautifully.

Techniques:

  • Use subtle internal gradients that suggest light sources
  • Add soft highlights on upper edges
  • Consider brighter, more saturated colors than you might have used previously
  • Avoid flat, matte appearances

2. Simplify Your Symbol

The Liquid Glass environment is visually rich. Icons with too much detail compete with the dynamic background and glass effects. Simpler symbols stand out better.

Techniques:

  • Reduce your icon to its essential form
  • Remove fine details that won't be visible at small sizes
  • Use bold, clear shapes
  • Ensure instant recognizability

3. Consider Depth Without Heaviness

Liquid Glass creates depth through layering and translucency. Your icon can suggest depth through subtle means rather than heavy shadows or 3D effects.

Techniques:

  • Use soft shadows sparingly
  • Layer shapes with subtle opacity differences
  • Create depth through color temperature (cool recedes, warm advances)
  • Avoid harsh drop shadows or overly realistic 3D rendering

4. Choose a Harmonious Color Palette

Your icon will appear against various wallpapers and glass surfaces. Colors that work in this context share certain qualities:

Colors that work well:

  • Vibrant but not neon
  • Good saturation with controlled brightness
  • Colors that "glow" rather than appear flat
  • Complementary gradients (two related colors)

Colors to be careful with:

  • Pure white (can wash out on bright backgrounds)
  • Very dark colors (may appear as "holes" in the glass)
  • Low-saturation grays (feel out of place)
  • Neon or overly bright colors (clash with the subtle glass aesthetic)

Step-by-Step Icon Design Process

Step 1: Gather Inspiration

Study how Apple's own apps handle icons in iOS 26. Note the color choices, gradients, and overall feel of system apps like Photos, Music, and Health.

Step 2: Create Your Concept

Start with sketches focusing on the essential symbol that represents your app. Think about:

  • What single image instantly communicates your app's purpose?
  • Can it be recognized at 40x40 pixels?
  • Does it feel modern and fresh?

Step 3: Design in Your Preferred Tool

Use vector-based tools for maximum flexibility:

Recommended Design Tools:
- Figma (free, web-based)
- Sketch (Mac)
- Adobe Illustrator
- Affinity Designer

Canvas Size: 1024 x 1024 pixels
Color Mode: sRGB (for most icons) or Display P3 (for vibrant colors)
Format: Export as PNG with no transparency

Step 4: Build Your Icon Layer by Layer

A well-structured icon typically has these layers:

Icon Layer Structure:
1. Background gradient (subtle, 2-3 colors)
2. Main symbol/glyph (simplified, bold)
3. Highlights (soft white/light overlay on top edge)
4. Subtle shadow (if needed, very soft)

Example: Creating a Glass-Friendly Gradient Background

/* Figma/CSS Gradient Example */
background: linear-gradient(
    135deg,
    #4A90D9 0%,      /* Slightly lighter blue */
    #1E5FA8 50%,     /* Main brand blue */
    #0D3F7A 100%     /* Deeper blue for depth */
);

/* The 135-degree angle creates a natural
   light-source feeling from top-left */

Step 5: Test on Liquid Glass Backgrounds

Before finalizing, preview your icon against various backgrounds:

  • Light wallpapers (ensure adequate contrast)
  • Dark wallpapers (check that details remain visible)
  • Colorful wallpapers (verify your icon doesn't clash)
  • The iOS 26 dock specifically

In Figma or Sketch, create mockups with glass-like overlays to simulate the iOS 26 environment.

Step 6: Export and Implement in Xcode

Export your final icon at 1024x1024 pixels as a PNG file. Then add it to your Xcode project:

Adding Icon to Xcode Asset Catalog:

1. Open your project in Xcode 26
2. Select Assets.xcassets in the navigator
3. Click the + button → App Icon
4. Drag your 1024x1024 PNG to the "App Store" slot
   (or use "Single Size" mode for automatic scaling)
5. Build and test on device

Using Apple's Icon Composer

Xcode 26 includes an updated Icon Composer tool that helps you create and preview icons in the Liquid Glass context.

Accessing Icon Composer

Xcode Menu:
Developer Tools → Icon Composer

Or launch from Terminal:
open -a "Icon Composer"

Icon Composer Features

  • Liquid Glass Preview: See your icon in the iOS 26 Home Screen context
  • Automatic Size Generation: Creates all required sizes from one master
  • Dark/Light Mode Preview: Test appearance in both modes
  • Wallpaper Testing: Preview against various backgrounds
  • Export Validation: Checks for common issues

For more on Apple's Icon Composer, see our complete Icon Composer tutorial.

Technical Specifications

Required Icon Sizes (Generated Automatically)

Size (points) Scale Pixels Usage
1024 1x 1024x1024 App Store
180 3x 180x180 iPhone (iOS 26)
120 2x 120x120 iPhone (older displays)
167 2x 167x167 iPad Pro
152 2x 152x152 iPad
76 1x 76x76 iPad (1x)

Format Requirements

  • File format: PNG
  • Color space: sRGB or Display P3
  • Transparency: Not allowed
  • Layers: Flattened
  • Bit depth: 8-bit per channel

Common Mistakes to Avoid

1. Using Actual Transparency

Don't try to make your icon itself translucent to "match" Liquid Glass. Icons must be fully opaque.

// Wrong: Trying to add transparency
icon.opacity = 0.8  // This won't work as expected

// Right: Design a solid icon that
// visually complements the glass aesthetic

2. Overly Complex Details

Small details disappear at Home Screen sizes and create visual noise against the dynamic Liquid Glass background.

3. Fighting the Environment

Icons that use very dark backgrounds or stark, flat colors can look out of place in the luminous Liquid Glass environment.

4. Ignoring Small Sizes

Always test your icon at actual Home Screen size (roughly 60x60 points). If it's not recognizable, simplify.

Alternative App Icons for Liquid Glass

iOS 26 continues to support alternative app icons, which can be a great way to offer variations that suit different wallpapers or user preferences.

// Setting an alternative icon in SwiftUI
Button("Switch Icon") {
    UIApplication.shared.setAlternateIconName("DarkModeIcon") { error in
        if let error = error {
            print("Error: \(error.localizedDescription)")
        }
    }
}

// In Info.plist, configure:
// CFBundleIcons → CFBundleAlternateIcons

Consider offering:

  • A lighter version for dark wallpapers
  • A darker version for light wallpapers
  • Seasonal or themed variations

Real-World Example: Skyscraper Icon

When updating the Skyscraper app icon for iOS 26, we applied these principles:

  • Simplified the symbol: Reduced to essential building shape
  • Added luminosity: Subtle gradient suggesting internal glow
  • Brightened the palette: Shifted to more vibrant Bluesky-inspired blues
  • Softened edges: Reduced hard shadows in favor of soft highlights
  • Tested extensively: Verified appearance on dozens of wallpaper combinations

The result is an icon that feels native to iOS 26 while maintaining brand recognition.

Accessibility Considerations

Ensure your icon works for all users:

  • Contrast: Icon should be distinguishable even with Reduce Transparency enabled
  • Color independence: Don't rely solely on color to convey meaning
  • Bold shapes: Users with low vision should be able to recognize the icon
// Preview with accessibility settings
#Preview("Reduce Transparency") {
    IconPreview()
        .environment(\.accessibilityReduceTransparency, true)
}

Tools and Resources

Design Tools

Apple Resources

Related Reading


About Skyscraper

Skyscraper is a Bluesky client built entirely with SwiftUI, updated for iOS 26 with full Liquid Glass support. Our development team shares insights from building a production iOS app to help other developers create beautiful, native applications.