@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      color_ = null;
      if (colorBuilder_ != null) {
        colorBuilder_.dispose();
        colorBuilder_ = null;
      }
      score_ = 0F;
      pixelFraction_ = 0F;
      return this;
    }
<pre>
Color information consists of RGB channels, score, and the fraction of
the image that the color occupies in the image.
</pre>

Protobuf type {@code google.cloud.vision.v1p1beta1.ColorInfo}
java-vision/proto-google-cloud-vision-v1p1beta1/src/main/java/com/google/cloud/vision/v1p1beta1/ColorInfo.java