优化自定义导航栏

DreamSleep/DreamSleep/Class/Start/Root/DSNaviBarViewController.m

@@ -66,7 +66,7 @@
     if (!_dsNaviBar) {
         _dsNaviBar = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kTopHeight(0))];
         _dsNaviBar.alpha = 0;
-        _dsNaviBar.backgroundColor = BrandColor;
+        _dsNaviBar.dk_backgroundColorPicker = DKColorPickerWithColors(BrandColor, DarkColor, DSWhite);
         
         [_dsNaviBar addSubview:self.titleLab];
         [_titleLab mas_makeConstraints:^(MASConstraintMaker *make) {