backgroundAttachment property
Background-attachment
Implementation
@override
CSSBackgroundAttachmentType? get backgroundAttachment => _backgroundAttachment;
      
      set
      backgroundAttachment
      (CSSBackgroundAttachmentType? value) 
      
    
    
    
Implementation
set backgroundAttachment(CSSBackgroundAttachmentType? value) {
  if (value == _backgroundAttachment) return;
  _backgroundAttachment = value;
  renderBoxModel?.markNeedsPaint();
}