*/
private String getColorRampDefinition(final List<Style> styles) {
// Parsing the first style
if (styles != null && styles.size() > 0) {
final Style style = styles.get(0);
final FeatureTypeStyle[] featureTypeStyles = style.featureTypeStyles().toArray(
new FeatureTypeStyle[0]);
for (FeatureTypeStyle featureTypeStyle : featureTypeStyles) {
// Getting the main transformation
Expression transformation = featureTypeStyle.getTransformation();