CardCarouselTheme constructor
      const
      CardCarouselTheme({ 
    
- int sharpness = 9,
 
Constructs a CardCarouselTheme instance with optional sharpness customization.
The sharpness parameter specifies the gradient intensity for edge fades. It defaults
to 9, offering a balanced visual effect suitable for most UI layouts. This constructor
is typically used when defining theme extensions in ArcaneTheme.
Parameters:
- sharpness: int (optional, default 9) - Controls fade sharpness (1-12, clamped).
 
Example:
final theme = CardCarouselTheme(sharpness: 5); // Softer fade
Implementation
const CardCarouselTheme({this.sharpness = 9});