message: Switch color map to rainbow.
diff: @@ -26,7 +26,7 @@ ThermalServer::ThermalServer(const ros::NodeHandle& nh,
  thermal_integrator_.reset(
  new ThermalIntegrator(tsdf_map_->getTsdfLayer(), thermal_layer_.get()));
  - color_map_.reset(new IronbowColorMap());
  + color_map_.reset(new RainbowColorMap());
  color_map_->setMinValue(10.0);
  color_map_->setMaxValue(38.0);
  }
  