// randomizes border colors for all subviews contained within the view
- (void)addBordersToSubviewsWithRandomColors;
// takes a single fadeColor as input, and adds borders to all subviews with varying fade amount
// 1. the dimmest faded border is the subview at index 0 ( self.subviews[0] )
// 2. the brightest faded border is the subview closest to the last index ( self.subviews[self.subviews.count - 1] )
// this hopefully adds some perspective when testing whether certain subviews are above or below others in the superview
- (void)addBordersToSubviewsWithFadingColor:(UIColor *)fadeColor;