Admin: More distinctive coloring for different task states.

admin/index.html

@@ -10,10 +10,18 @@
         }
 
         .task-disabled {
-            color: lightcoral;
+            color: #eea236;
             text-decoration: line-through;
         }
 
+        .task-state-running {
+            color: darkblue;
+        }
+
+        .task-state-failed {
+            color: red;
+        }
+
         .task-description {
             max-width: 220px;
         }