frutiger-aero – Design & UI skill for AI agents

Frutiger Aero

> "The aesthetic of mid-2000s optimism. Glossy plastic, clear water, blue skies, and eco-friendly technology."

When to Use

Use this sub-style when the user's request matches the aesthetic described above. This is a child reference of the design-it skill and is not meant to be triggered directly.

Core Principles

1. Hyper-Glossy Textures: Buttons look like polished glass or wet plastic. Extensive use of convex gradients and specular highlights.

2. Skeuomorphic Nature: Motifs of green grass, blue skies, water droplets, and bubbles intersecting with sleek glass technology (think Windows Aero or early iOS).

3. Translucency: Frosted glass effects, but much more saturated and reflective than modern glassmorphism.

Visual DNA

• Colors: Cyan, sky blue, lime green, and pure white. Avoid dark themes entirely.
• Typography: Clean, highly legible humanist sans-serifs (like the font *Frutiger*, Segoe UI, or Myriad Pro).
• Styling: Drop shadows are deep. Highlights are bright, sharp white lines at the top of buttons.

Web Implementation

• Use multiple box-shadows (inset for the gloss, outset for depth) and linear-gradients.
• CSS Example:

body {
  /* Classic blue sky / green grass gradient */
  background: linear-gradient(to bottom, #87CEEB 0%, #E0F6FF 60%, #98FB98 100%);
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

.aero-btn {
  background: linear-gradient(to bottom, #73c8f8 0%, #1583d7 50%, #0361a3 50%, #299eef 100%);
  color: white;
  border: 1px solid #024b7f;
  border-radius: 20px;
  padding: 12px 32px;
  font-weight: 600;
  text-shadow: 0 -1px 1px rgba(0,0,0,0.5);
  
  /* The Glossy Highlight and Depth */
  box-shadow: 
    inset 0 1px 1px rgba(255,255,255,0.8), /* Top edge highlight */
    inset 0 15px 15px rgba(255,255,255,0.3), /* Convex plastic shine */
    0 4px 6px rgba(0,0,0,0.2); /* Drop shadow */
}

.aero-panel {
  /* Windows Vista/7 Aero Glass */
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-top-color: #ffffff; /* Brighter top edge */
  border-radius: 8px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

App Implementation

SwiftUI

struct FrutigerAeroView: View {
    var body: some View {
        ZStack {
            // Classic sky to grass gradient
            LinearGradient(
                colors: [Color(hex: "87CEEB"), Color(hex: "E0F6FF"), Color(hex: "98FB98")],
                startPoint: .top, endPoint: .bottom
            ).ignoresSafeArea()
            
            // Glossy Button
            Button(action: {}) {
                Text("Windows Vista")
                    .font(.headline)
                    .foregroundColor(.white)
                    .shadow(color: .black.opacity(0.5), radius: 1, y: -1) // Inset text shadow effect
                    .padding(.horizontal, 40)
                    .padding(.vertical, 16)
                    .background(
                        // Base gradient
                        LinearGradient(
                            stops: [
                                .init(color: Color(hex: "73c8f8"), location: 0.0),
                                .init(color: Color(hex: "1583d7"), location: 0.5),
                                .init(color: Color(hex: "0361a3"), location: 0.5), // Sharp color stop
                                .init(color: Color(hex: "299eef"), location: 1.0)
                            ],
                            startPoint: .top, endPoint: .bottom
                        )
                    )
                    .cornerRadius(25)
                    .overlay(
                        // Top white specular highlight
                        RoundedRectangle(cornerRadius: 25)
                            .stroke(
                                LinearGradient(colors: [.white, .clear], startPoint: .top, endPoint: .bottom),
                                lineWidth: 1.5
                            )
                    )
                    .shadow(color: .black.opacity(0.3), radius: 5, y: 4)
            }
        }
    }
}
// Note: Color(hex:) requires a custom extension in SwiftUI.

• The signature Frutiger Aero "gel" look requires a sharp color transition right in the middle. Set two gradient stops at 0.5 with different colors.
• An .overlay with a top-down white-to-clear gradient stroke creates the glass highlight edge.

Flutter

class FrutigerAeroScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        // Sky/Grass background
        decoration: const BoxDecoration(
          gradient: LinearGradient(
            begin: Alignment.topCenter, end: Alignment.bottomCenter,
            colors: [Color(0xFF87CEEB), Color(0xFFE0F6FF), Color(0xFF98FB98)],
          ),
        ),
        child: Center(
          child: Container(
            decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(25),
              boxShadow: const [BoxShadow(color: Colors.black38, blurRadius: 6, offset: Offset(0, 4))],
              // Glossy Gel Button
              gradient: const LinearGradient(
                begin: Alignment.topCenter, end: Alignment.bottomCenter,
                stops: [0.0, 0.5, 0.5, 1.0], // Sharp transition at 50%
                colors: [
                  Color(0xFF73C8F8), // Light top
                  Color(0xFF1583D7), // Mid top
                  Color(0xFF0361A3), // Dark mid (creates the glass horizon)
                  Color(0xFF299EEF), // Bright bottom reflection
                ],
              ),
              border: Border.all(color: Colors.white.withOpacity(0.5), width: 1),
            ),
            child: Material(
              color: Colors.transparent,
              child: InkWell(
                borderRadius: BorderRadius.circular(25),
                onTap: () {},
                child: const Padding(
                  padding: EdgeInsets.symmetric(horizontal: 40, vertical: 16),
                  child: Text(
                    'Media Player',
                    style: TextStyle(
                      color: Colors.white,
                      fontWeight: FontWeight.bold,
                      shadows: [Shadow(color: Colors.black54, offset: Offset(0, -1))],
                    ),
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

• Flutter's LinearGradient stops array is perfect for this. Providing 0.5 twice creates a hard line that mimics a curved glass reflection.
• Use Text shadows with a negative offset: Offset(0, -1) to recreate the classic etched-text look of the 2000s.

React Native

import LinearGradient from 'react-native-linear-gradient';

const FrutigerAeroScreen = () => {
  return (
    <LinearGradient
      colors={['#87CEEB', '#E0F6FF', '#98FB98']}
      style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}
    >
      <View style={{
        shadowColor: '#000', shadowOffset: { width: 0, height: 4 }, 
        shadowOpacity: 0.3, shadowRadius: 5, elevation: 8
      }}>
        <LinearGradient
          colors={['#73C8F8', '#1583D7', '#0361A3', '#299EEF']}
          locations={[0, 0.5, 0.5, 1]} // The sharp glass horizon
          style={{
            borderRadius: 25,
            paddingVertical: 16,
            paddingHorizontal: 40,
            borderWidth: 1,
            borderColor: 'rgba(255,255,255,0.6)',
            borderTopWidth: 2 // Stronger specular highlight on top
          }}
        >
          <Text style={{ 
            color: '#FFF', 
            fontWeight: 'bold', 
            textShadowColor: 'rgba(0,0,0,0.5)', 
            textShadowOffset: { width: 0, height: -1 }, 
            textShadowRadius: 1 
          }}>
            Glossy Button
          </Text>
        </LinearGradient>
      </View>
    </LinearGradient>
  );
};

• react-native-linear-gradient supports locations. Set them to [0, 0.5, 0.5, 1] to create the two-tone convex reflection.
• Setting borderTopWidth: 2 with a white border color effectively simulates the bright white top-edge highlight of a shiny plastic object.

Jetpack Compose

@Composable
fun FrutigerAeroScreen() {
    Box(
        modifier = Modifier
            .fillMaxSize()
            .background(
                Brush.verticalGradient(listOf(Color(0xFF87CEEB), Color(0xFFE0F6FF), Color(0xFF98FB98)))
            ),
        contentAlignment = Alignment.Center
    ) {
        // Glossy Button
        val glassBrush = Brush.verticalGradient(
            0.0f to Color(0xFF73C8F8),
            0.49f to Color(0xFF1583D7),
            0.5f to Color(0xFF0361A3), // Sharp reflection line
            1.0f to Color(0xFF299EEF)
        )

        Box(
            modifier = Modifier
                .shadow(8.dp, RoundedCornerShape(25.dp))
                .background(gla

… (full content is in the download package)