app/templates/index.html

{% extends "base.html" %}
{% import 'bootstrap/wtf.html' as wtf %}

{% block app_content %}
  <div class="jumbotron">
    {% if current_user.is_anonymous %}
    <h3>Please register to access full functionality</h3>
    <p class="lead"></p>
    <p><a class="btn btn-lg btn-success" href="register" role="button">Register</a></p>
    {% else %}
      {% if current_user.fullname != "" %}
        {% set welcome_name = current_user.fullname %}
      {% else %}
        {% set welcome_name = current_user.email %}
      {% endif %}
      <h4>Welcome {{ welcome_name }}!</h4>
    {% endif %}
  </div>
  <div class="jumbotron" style="background:lightyellow">
    {{ text|markdown }}
  </div>
{% endblock %}