LED응원

## Key Features

### LED Scoreboard Display
- Full-screen LED scoreboard display in landscape mode
- Smooth text scroll animation
- Live preview

### Text Settings
- Enter a cheering message (up to 100 characters)
- Adjust font size (24px to 200px)
- Confirm settings with a live preview

### Colors and Effects
- Select a text color (17 color palettes)
- Select a background color
- **LED Glow Effect**: Glow the text like LEDs
- **LED Dot Pattern**: Display text as a matrix of LED dots
- **Rainbow Colors**: Rainbow gradient effect for text

### Animation Settings
- **Scroll Speed**: 0 to 500px/s
- **Scroll Direction**: Left → / ← Right / Stop
- **Blink Effect**: Set text to blink

### Save and Manage
- Save/Load Settings
- Manage a list of saved phrases
- **Delete Selected**: Select multiple items to delete at once
- **Delete All**: Delete all saved phrases at once Delete
- Quick access to saved settings
- Swipe to delete items (undoable)

### User Interface
- Bottom navigation bar (Home / Save text)
- Intuitive Material Design 3 UI
- Dark mode support
- Convenient management with selection mode