What is the role of the Icon widget in Flutter?

The Icon widget displays a glyph from an icon set (such as Material Icons or Cupertino Icons) or from a custom font.

Main properties:

• icon: An object representing the icon (e.g., Icons.add).
• size: The size of the icon in logical pixels.
• color: The color of the icon.

Example usage:

Icon(
  Icons.star,
  size: 48.0,
  color: Colors.amber,
)