【WPF】各类画刷GradientBrush、SolidColorBrush、 LinearGradientBrush、RadialgradientBrush、DrawingBrush
1、渐变色
https://www.cnblogs.com/kuangxiangnice/p/5820631.html
2、各类画刷
https://www.cnblogs.com/huangxincheng/archive/2012/07/14/2591941.html
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