// UIAppearance
[SFCSBView appearance].cornerRadius = 20;
[SFCSBView appearance].rectCornner = UIRectCornerAllCorners;
[SFCSBView appearance].shadowPosition = UIShadowPostionAll;
[SFCSBView appearance].shadowRadius = 20;
[SFCSBView appearance].borderColor = [UIColor systemBlueColor];
[SFCSBView appearance].borderWidth = 5;
[SFCSBView appearance].borderPosition = UIBorderPostionAll;


SFCSBView * shadowView = [SFCSBView new];
shadowView.cornerRadius = 20;
shadowView.rectCornner = UIRectCornerAllCorners;
shadowView.shadowPosition = UIShadowPostionAll;
shadowView.shadowColor = [[UIColor blackColor]colorWithAlphaComponent:0.6];
shadowView.shadowRadius = 20;
shadowView.borderColor = UIColor.systemBlueColor;
shadowView.borderWidth = 5;
shadowView.borderPosition = UIBorderPostionAll;

// Generate UIImage by color or gradient colors, then start UIImage process flow
UIColor.lightGrayColor.sf_flow.corner(10, UIRectCornerAllCorners).border(0.5, UIColor.blackColor).image;
@[UIColor.redColor,UIColor.purpleColor].sf_gradientFlow(YES,self.gradientButton.frame.size).corner(10, UIRectCornerTopLeft|UIRectCornerBottomRight).border(1, UIColor.blackColor).image

// UIImage Process Flow
[UIImage new].sf_flow.circle.resize(CGSizeMake(40, 40)).blur(SFBlurEffectLight).corner(10, UIRectEdgeAll).border(1, UIColor.redColor)