Icon 图标 ​

VanIcon(VanIcons.chat_o),

VanIcon(VanIcons.cart_o, color: Color(0xFF1989fa)),
VanIcon(VanIcons.fire_o, color: Color(0xFFee0a24)),

VanIcon(VanIcons.chat_o, size: 32),
VanIcon(VanIcons.chat_o, size: 48),