tintColor: processColor()

in deprecated-react-native-ios-mapview/DeprecatedMapView.js [399:484]
83 lines of code
25 McCabe index (conditional complexity)

            tintColor: processColor(tintColor),
          }}
          source={image}
        />;
        image = undefined;
      }
      if (view) {
        if (image) {
          console.warn('`image` and `view` both set on annotation. Image will be ignored.');
        }
        var viewIndex = children.length;
        children.push(React.cloneElement(view, {
          // $FlowFixMe - An array of styles should be fine
          style: [styles.annotationView, view.props.style || {}]
        }));
      }
      if (leftCalloutView) {
        var leftCalloutViewIndex = children.length;
        children.push(React.cloneElement(leftCalloutView, {
          style: [styles.calloutView, leftCalloutView.props.style || {}]
        }));
      }
      if (rightCalloutView) {
        var rightCalloutViewIndex = children.length;
        children.push(React.cloneElement(rightCalloutView, {
          style: [styles.calloutView, rightCalloutView.props.style || {}]
        }));
      }
      if (detailCalloutView) {
        var detailCalloutViewIndex = children.length;
        children.push(React.cloneElement(detailCalloutView, {
          style: [styles.calloutView, detailCalloutView.props.style || {}]
        }));
      }

      const result = {
        ...annotation,
        tintColor: tintColor && processColor(tintColor),
        image,
        viewIndex,
        leftCalloutViewIndex,
        rightCalloutViewIndex,
        detailCalloutViewIndex,
        view: undefined,
        leftCalloutView: undefined,
        rightCalloutView: undefined,
        detailCalloutView: undefined,
      };
      result.id = id || encodeURIComponent(JSON.stringify(result));
      result.image = image && resolveAssetSource(image);
      return result;
    });
    overlays = overlays && overlays.map((overlay: Object) => {
      const {id, fillColor, strokeColor} = overlay;
      const result = {
        ...overlay,
        strokeColor: strokeColor && processColor(strokeColor),
        fillColor: fillColor && processColor(fillColor),
      };
      result.id = id || encodeURIComponent(JSON.stringify(result));
      return result;
    });

    const findByAnnotationId = (annotationId: string) => {
      if (!annotations) {
        return null;
      }
      for (let i = 0, l = annotations.length; i < l; i++) {
        if (annotations[i].id === annotationId) {
          return annotations[i];
        }
      }
      return null;
    };

    // TODO: these should be separate events, to reduce bridge traffic
    let onPress, onAnnotationDragStateChange, onAnnotationFocus, onAnnotationBlur;
    if (annotations) {
      onPress = (event: Event) => {
        if (event.nativeEvent.action === 'annotation-click') {
          // TODO: Remove deprecated onAnnotationPress API call later.
          this.props.onAnnotationPress &&
            this.props.onAnnotationPress(event.nativeEvent.annotation);
        } else if (event.nativeEvent.action === 'callout-click') {
          const annotation = findByAnnotationId(event.nativeEvent.annotationId);
          if (annotation) {