{% macro avatar(jid, class="is-48x48") %}
    {%- if identities is defined -%}
        {% set identity = identities.get(jid) %}
        {%- if identity and identity.avatar.filename %}
            <div class="is-avatar image {{class}}">
                <img src="/cache/common/{{identity.avatar.filename}}">
            </div>
        {% else %}
            {% set nick = identity.nicknames[0] if identity.nicknames else jid %}
            <span class="is-avatar image {{class}} is-flex has-items-centered has-text-weight-bold is-size-3 {{class}}">{{nick|first|upper}}</span>
        {%- endif -%}
    {%- endif -%}
{% endmacro %}