rearranged

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

MVMCoreUI/Categories/UIColor+MFConvenience.h

@@ -183,12 +183,12 @@
 // Returns a gradient lighter color;
 + (nonnull UIColor *)mfGradientColor:(nullable UIColor *)color;
 
+// Returns if the color is dark or not
+- (BOOL)isDark;
+
 #pragma mark - Hex String
 
 + (nullable NSString *)hexStringForColor:(nonnull UIColor*)color;
 + (nonnull UIColor *)mfGetColorForHexWithTransparency:(nonnull NSString *)hexString;
 
-// Returns if the color is dark or not
-- (BOOL)isDark;
-
 @end

MVMCoreUI/Categories/UIColor+MFConvenience.m

@@ -389,6 +389,12 @@
     return [UIColor whiteColor];
 }
 
+- (BOOL)isDark {
+  CGFloat greyScale = 0;
+  [self getWhite:&greyScale alpha:nil];
+  return greyScale < 0.5;
+}
+
 #pragma mark - Hex String
 
 + (nullable NSString *)hexStringForColor:(nonnull UIColor*)color {
@@ -403,10 +409,4 @@
     }
 }
 
-- (BOOL)isDark {
-  CGFloat greyScale = 0;
-  [self getWhite:&greyScale alpha:nil];
-  return greyScale < 0.5;
-}
-
 @end