public Builder setOverlayType(
            com.google.cloud.vertexai.api.ExplanationMetadata.InputMetadata.Visualization
                    .OverlayType
                value) {
          if (value == null) {
            throw new NullPointerException();
          }
          bitField0_ |= 0x00000020;
          overlayType_ = value.getNumber();
          onChanged();
          return this;
        }
<pre>
How the original image is displayed in the visualization.
Adjusting the overlay can help increase visual clarity if the original
image makes it difficult to view the visualization. Defaults to NONE.
</pre>

<code>
.google.cloud.vertexai.v1.ExplanationMetadata.InputMetadata.Visualization.OverlayType overlay_type = 6;
</code>

@param value The overlayType to set.
@return This builder for chaining.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ExplanationMetadata.java