                      <p>Adds a child colorset.</p>

<p>If a specific color is not found in the parnet colorset, it will be
searched in the children.<br>
This allows you to combine multiple colorsets into a single one
(usually the main/shared instance).</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                         