Show "share profile with group" banner.

// FREEBIE

Signal/src/UIColor+OWS.h

@@ -14,6 +14,7 @@
 + (UIColor *)ows_darkGrayColor;
 + (UIColor *)ows_yellowColor;
 + (UIColor *)ows_reminderYellowColor;
++ (UIColor *)ows_reminderDarkYellowColor;
 + (UIColor *)ows_greenColor;
 + (UIColor *)ows_redColor;
 + (UIColor *)ows_blackColor;

Signal/src/UIColor+OWS.m

@@ -52,6 +52,11 @@
     return [UIColor colorWithRed:252.f / 255.f green:240.f / 255.f blue:217.f / 255.f alpha:1.f];
 }
 
++ (UIColor *)ows_reminderDarkYellowColor
+{
+    return [UIColor colorWithRGBHex:0xFCDA91];
+}
+
 + (UIColor *)ows_greenColor
 {
     // green: #BF4240

Signal/src/ViewControllers/ConversationView/MessagesViewController.m

@@ -791,7 +791,7 @@ typedef enum : NSUInteger {
         [self createBannerWithTitle:
                   NSLocalizedString(@"MESSAGES_VIEW_GROUP_PROFILE_WHITELIST_BANNER",
                       @"Text for banner in group conversation view that offers to share your profile with this group.")
-                        bannerColor:[UIColor ows_reminderYellowColor]
+                        bannerColor:[UIColor ows_reminderDarkYellowColor]
                         tapSelector:@selector(groupProfileWhitelistBannerWasTapped:)];
     }
 }