youtube

@interface ASDisplayNode : NSObject <UIAccessibilityIdentification>
@property ASDisplayNode *supernode;
@end

@interface ASTextNode : ASDisplayNode
@property NSAttributedString *attributedText;
@end

%hook ASTextNode
- (void)didLoad {
  %orig;
  if ([self.supernode.accessibilityIdentifier isEqualToString:@"eml.timestamp"])
    self.attributedText = [[NSMutableAttributedString alloc]
        initWithString:@"Hello World!"
            attributes:@{
              NSForegroundColorAttributeName : [UIColor whiteColor],
              NSFontAttributeName : [UIFont systemFontOfSize:14]
            }];
}
%end

// https://www.reddit.com/r/jailbreakdevelopers/comments/tnu8dc/question_i_need_help_creating_a_youtube_tweak/