Make use of pending color in Avatar atom

src/atoms/Avatar.local.scss

-.root {
-  --color-primary: #0d78f2;
-  --color-danger: #ff2d1a;
-  --color-warning: #ee7600;
-  --color-valid: #00bf05;
-  --color-waiting: #aaa;
-}
-
 figure {
   width: 6em;
   margin: 0 auto 2px;
@@ -72,7 +64,7 @@ figure {
 
 .pending {
   .persona {
-    fill: var(--color-waiting);
+    fill: var(--color-pending);
     display: block;
   }
 
@@ -85,7 +77,7 @@ figure {
   }
 
   .question-mark {
-    fill: var(--color-waiting);
+    fill: var(--color-pending);
     display: block;
   }
 }