public RoundingParams setOverlayColor(@ColorInt int overlayColor) {
    mOverlayColor = overlayColor;
    mRoundingMethod = RoundingMethod.OVERLAY_COLOR;
    return this;
  }
Sets the overlay color and changes the method to {@code RoundingMethod.COLOR_OVERLAY}.

@param overlayColor overlay color
drawee/src/main/java/com/facebook/drawee/generic/RoundingParams.java