QML颜色渐变

gradient: Gradient {

         GradientStop { position: 0.0; color: "#8C8F8C" }

         GradientStop { position: 0.17; color: "#6A6D6A" }

         GradientStop { position: 0.98;color: "#3F3F3F" }

         GradientStop { position: 1.0; color: "#0e1B20" }

     }