private boolean customStyleHasFields(CustomStyle customStyle) {
        boolean returnValue = false;
        
        for (CustomProperty customProperty : customStyle.getProperties()) {
            if (customPropertyIsNotNull(customProperty)) {
                returnValue = true;
                break;
            }
        }
        
        return returnValue;
    }
Exports skin data to a JSON file to be loaded by libGDX.
@param fileHandle
@return
core/src/com/ray3k/skincomposer/data/JsonData.java