public static Folder getSpoilerImageFolder(final String geocode) {
        if (geocode == null) {
            return null;
        }
        final String suffix = StringUtils.right(geocode, 2);
        return Folder.fromFolder(PersistableFolder.SPOILER_IMAGES.getFolder(),
                suffix.substring(1) + "/" + suffix.charAt(0) + "/" + geocode);
    }
Reads an Inputstream as SVG image. Stream is NOT CLOSED! If an error happens on read, null is returned
main/src/main/java/cgeo/geocaching/utils/ImageUtils.java