修改基础类背景颜色

GMBase/Classes/WMBaseViewController.m

@@ -55,7 +55,7 @@
 - (void)viewDidLoad
 {
     [super viewDidLoad];
-    self.view.backgroundColor = [UIColor colorWithhex:0xf5f5f5];
+    self.view.backgroundColor = UIColor.background;
     self.edgesForExtendedLayout = UIRectEdgeNone;
     [self addNavigationBar];
     [self hideLeftButtonForRootController];