docs: public static void readIconicsCompoundButton(@NonNull Context ctx,
                                                   @Nullable AttributeSet attrs,
                                                   @NonNull CheckableIconBundle icon) {
          TypedArray a = ctx.obtainStyledAttributes(attrs, R.styleable.IconicsCompoundButton, 0, 0);
  
          //obtaining attributes for Unchecked icon state
          icon.mUncheckedIcon = getIconicsCompoundButtonUncheckedDrawable(ctx, a);
  
          //obtaining attributes for Checked icon state
          icon.mCheckedIcon = getIconicsCompoundButtonCheckedDrawable(ctx, a);
  
          a.recycle();
      }