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

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