{% macro avatar_image(user) %}
    {% if user.avatar is not empty and kimai_config.themeAllowAvatarUrls %}
        {% set avatar = asset(user.avatar, 'avatars') %}
        <span class="avatar" style="background-image:url({{ avatar }})" title="{{ user.displayName }}">&nbsp;</span>
    {% else %}
        {% set color = user.color|colorize(user.displayName) %}
        <span class="avatar" style="background-color: {{ color }}; color: {{ color|font_contrast }}" title="{{ user.displayName }}">{{ user.initials }}</span>
    {% endif %}
{% endmacro %}