retro-design – skill Thiết kế & UI cho agent AI

Retro Design

> "A warm, analog feeling. Nostalgia through muted tones, grain, and classic typography."

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. Warm, Analog Color Palettes: Colors look faded by the sun or printed on aged paper.

2. Texture and Noise: A slight grain overlay to simulate film or old print media.

3. Classic Typography Pairings: Heavy, groovy display fonts paired with typewriter or classic serif body copy.

Visual DNA

• Colors: Monochromatic Brown or warm, faded palettes (mustard yellow, burnt orange, sage green, off-white).
• Typography: Display fonts like Cooper Black, Garamond, or Courier.
• Styling: Badges, stamps, wavy borders, and halftone patterns.

Web Implementation

• Use CSS filters and background noise images to create texture.
• CSS Example:

body {
  background-color: #F4E8D1; /* Aged paper */
  color: #3E2723; /* Deep brown ink */
  font-family: 'Georgia', serif;
  
  /* Apply a subtle noise overlay using a pseudo-element or background image */
  background-image: url('noise-texture.png');
  background-blend-mode: multiply;
}

.retro-header {
  font-family: 'Cooper Black', serif;
  font-size: 4rem;
  color: #D35400; /* Burnt orange */
  text-shadow: 2px 2px 0px #F1C40F; /* Mustard yellow drop shadow */
  letter-spacing: -1px;
}

.retro-card {
  background-color: #FFF3E0;
  border: 2px solid #3E2723;
  border-radius: 12px;
  padding: 24px;
  
  /* Vintage offset shadow */
  box-shadow: 8px 8px 0px #795548;
}

.retro-badge {
  display: inline-block;
  background-color: #E74C3C;
  color: #F4E8D1;
  font-family: monospace;
  font-weight: bold;
  padding: 8px 16px;
  border-radius: 50%; /* Make it look like a sticker */
  transform: rotate(-10deg);
}

App Implementation

SwiftUI

struct RetroCard: View {
    let paperColor = Color(red: 0.96, green: 0.91, blue: 0.82) // #F4E8D1
    let inkColor = Color(red: 0.24, green: 0.15, blue: 0.14) // #3E2723
    
    var body: some View {
        ZStack {
            paperColor.ignoresSafeArea()
            
            // Optional: Noise texture
            Image("film_grain")
                .resizable()
                .blendMode(.multiply)
                .opacity(0.3)
                .ignoresSafeArea()
            
            VStack(alignment: .leading, spacing: 24) {
                Text("RETRO DESIGN")
                    .font(.custom("Cooper Black", size: 36))
                    .foregroundColor(Color(red: 0.83, green: 0.33, blue: 0.0)) // #D35400
                    .shadow(color: Color(red: 0.95, green: 0.77, blue: 0.06), radius: 0, x: 2, y: 2)
                
                Text("Analog warmth and classic typography.")
                    .font(.custom("Georgia", size: 18))
                    .foregroundColor(inkColor)
            }
            .padding(32)
            .background(Color(red: 1.0, green: 0.95, blue: 0.88))
            .cornerRadius(12)
            .overlay(
                RoundedRectangle(cornerRadius: 12)
                    .stroke(inkColor, lineWidth: 2)
            )
            // Vintage solid offset shadow
            .shadow(color: Color(red: 0.47, green: 0.33, blue: 0.28), radius: 0, x: 8, y: 8)
        }
    }
}

• A grain texture image can be overlaid using .blendMode(.multiply). Be aware of memory usage with full-screen textures.
• Use .shadow(radius: 0) to create the hard offset shadows typical of 70s print media.
• Custom fonts are optional; use licensed and registered fonts with system fallbacks.

Flutter

class RetroCard extends StatelessWidget {
  final Color paperColor = const Color(0xFFF4E8D1);
  final Color inkColor = const Color(0xFF3E2723);

  @override
  Widget build(BuildContext context) {
    return Container(
      color: paperColor,
      child: Stack(
        fit: StackFit.expand,
        children: [
          // Noise texture
          Opacity(
            opacity: 0.3,
            child: Image.asset('assets/film_grain.png', 
              fit: BoxFit.cover, 
              color: paperColor, // colorBlendMode requires a color to blend with this image
              colorBlendMode: BlendMode.multiply),
          ),
          Center(
            child: Container(
              padding: const EdgeInsets.all(32),
              decoration: BoxDecoration(
                color: const Color(0xFFFFF3E0),
                borderRadius: BorderRadius.circular(12),
                border: Border.all(color: inkColor, width: 2),
                boxShadow: const [
                  BoxShadow(
                    color: Color(0xFF795548),
                    blurRadius: 0, // Hard offset shadow
                    offset: Offset(8, 8),
                  ),
                ],
              ),
              child: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  const Text('RETRO DESIGN',
                    style: TextStyle(
                      fontFamily: 'Cooper',
                      fontSize: 36,
                      color: Color(0xFFD35400),
                      shadows: [Shadow(color: Color(0xFFF1C40F), offset: Offset(2, 2))],
                    )),
                  const SizedBox(height: 24),
                  Text('Analog warmth and classic typography.',
                    style: TextStyle(fontFamily: 'Georgia', fontSize: 18, color: inkColor)),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }
}

• Wrap backgrounds in a Stack to place a semi-transparent film grain asset over the solid color.
• Drop shadows for text and containers must have blurRadius: 0 to emulate offset misregistered ink prints.

React Native

const RetroCard = () => {
  return (
    <ImageBackground 
      source={require('./film_grain.png')}
      style={{ flex: 1, backgroundColor: '#F4E8D1', padding: 24, justifyContent: 'center' }}
      imageStyle={{ opacity: 0.3, tintColor: '#3E2723' }}
    >
      <View style={{
        backgroundColor: '#FFF3E0',
        padding: 32,
        borderRadius: 12,
        borderWidth: 2,
        borderColor: '#3E2723',
        // Hard drop shadow
        shadowColor: '#795548',
        shadowOffset: { width: 8, height: 8 },
        shadowOpacity: 1,
        shadowRadius: 0,
        elevation: 8, // Fallback for Android, though it blurs
      }}>
        <Text style={{
          fontFamily: 'CooperBlack',
          fontSize: 36,
          color: '#D35400',
          textShadowColor: '#F1C40F',
          textShadowOffset: { width: 2, height: 2 },
          textShadowRadius: 0,
          marginBottom: 24
        }}>
          RETRO DESIGN
        </Text>
        <Text style={{ fontFamily: 'Georgia', fontSize: 18, color: '#3E2723' }}>
          Analog warmth and classic typography.
        </Text>
      </View>
    </ImageBackground>
  );
};

• Use ImageBackground on the root view for the grain.
• Android's elevation cannot do unblurred offset shadows natively. Use react-native-drop-shadow for perfect retro shadows on Android.

Jetpack Compose

@Composable
fun RetroCard() {
    val inkColor = Color(0xFF3E2723)
    
    Box(modifier = Modifier.fillMaxSize().background(Color(0xFFF4E8D1))) {
        // Noise Texture Overlay
        Image(
            painter = painterResource(id = R.drawable.film_grain),
            contentDescription = null,
            contentScale = ContentScale.Crop,
            modifier = Modifier.matchParentSize().alpha(0.3f),
            colorFilter = ColorFilter.tint(Color.Black, BlendMode.Multiply)
        )
        
        Box(
            modifier = Modifier
                .align(Alignment.Center)
                .padding(24.dp)
                // Fake hard shadow in compose by drawing behind
                .drawBehind {
                    drawRoundRect(
                        color = Color(0xFF795548),
                        topLeft = Offset(8.dp.toPx(), 8.dp.toPx()),
                        size = size,
                        cornerRadius = CornerRadius(12.dp.toPx())
                    )
                }
                .background(Color(0xFFFFF3E0), RoundedCornerShape(12.dp))
                .border(2.dp, inkColor, RoundedCornerShape(12.dp))
                .padding(32.dp)
        ) {
            Column {
                Text("RETRO DESIGN",
                    fontFamily = FontFamily(Font(R.font.cooper_black)),
                    fontSize = 36.sp,
                    color = Color(0xFFD35400),
                    style = TextStyle(shadow = Shadow(Color(0xFFF1C40F), Offset(4f, 4f), 0f))
                )
                Spacer(Modifier.height(24.dp))
                Text("Analog warmth and classic typography.",
        

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