code: void applyTo(DayViewFacade other) {
      if (selectionDrawable != null) {
        other.setSelectionDrawable(selectionDrawable);
      }
      if (backgroundDrawable != null) {
        other.setBackgroundDrawable(backgroundDrawable);
      }
      other.spans.addAll(spans);
      other.isDecorated |= this.isDecorated;
      other.daysDisabled = daysDisabled;
    }
docs: Apply things set this to other
  
  @param other facade to apply our data to