How i will add Radial Gradient in SwiftUI?

RoundedRectangle(cornerRadius: 25.0)
       .fill(
           //radial gradient
           RadialGradient(gradient: Gradient(colors: [Color.red, Color.green, Color.yellow]), center: .center, startRadius: 5, endRadius: 500)
           
       )
       .frame(width: 300, height: 200)