{% case section[0] %}
  {% when "features" %}
    {% assign colors = "text-gradient-aquamarine-mauve" %}
  {% when "bugs" %}
    {% assign colors = "text-gradient-red-orange" %}
  {% when "known_issues" %}
    {% assign colors = "text-gradient-dark-mint" %}
  {% when "security_fixes" %}
    {% assign colors = "text-gradient-coral-yellow-dark" %}
  {% when "changes" %}
    {% assign colors = "text-gradient-blue-purple" %}
  {% when "deprecations" %}
    {% assign colors = "text-gradient-dark-mint" %}
  {% else %}
    {% assign colors = "text-gradient-aquamarine-mauve" %}
{% endcase %}

<h4 class="{{ colors }} text-uppercase text-bold">{{ note.heading }}</h4>