Avatar badge sizes

scss/ui/_avatars.scss

@@ -39,6 +39,10 @@
     font-size: $size / 2;
     line-height: $size;
   }
+    .avatar-#{$avatar-size} .badge:empty {
+    width: $size / 4;
+    height: $size / 4;
+  }
 }
 
 
@@ -98,4 +102,4 @@
   font-size: $h6-font-size;
   line-height: 1;
   margin-top: .25rem;
-}
\ No newline at end of file
+}