mixin renderProfilePicture (user, options)
  -
    var iconImageUrl = '/img/default-member.png';
    if (user?.picture?.large) {
      iconImageUrl = `/image/${user.picture.large._id}`;
    } else if (user?.picture?.small) {
      iconImageUrl = `/image/${user.picture.small._id}`;
    }
    options = Object.assign({
      title: user.displayName || user.username,
      iconClass: 'sb-xxsmall',
    }, options);

  img(
    src= iconImageUrl,
    class= `profile-picture ${options.iconClass}`,
  )