Template jwinf: Change color of challenge section on index page to brighter, more orange red

templates/jwinf/index.hbs

@@ -44,7 +44,7 @@
                   </a>
                 </div>
                 <div class="tile is-parent is-6">
-                  <a href="/contest/?filter=challenge" class="tile is-child notification" style="background-color: #d2222217">
+                  <a href="/contest/?filter=challenge" class="tile is-child notification" style="background-color: #fff1ea">
                     <h3 class="title is-4">Herausforderungen</h3>
                     <h4 class="subtitle is-5">Aufgaben mit und ohne Zeitbeschränkung</h4>
                     <img src="/static/images/gross.png" style="width:30%; margin: 0px 35% 37px;">