public static void changeAvatar(@NonNull final IAvatar avatar, final String newUrl) {
        if (!Objects.equals(Settings.getAvatarUrl(avatar), newUrl)) {
            Settings.setAvatarUrl(avatar, newUrl);
        }
    }
Class to retrieve Avatar images from. This class handles e.g. in-memory image caching
main/src/main/java/cgeo/geocaching/ui/AvatarUtils.java