add badge color

packages/app/src/styles/theme/_apply-colors-dark.scss

@@ -469,6 +469,11 @@ ul.pagination {
 * grw-side-contents
 */
 .grw-side-contents-sticky-container {
+  .grw-count-badge {
+    color: $gray-400;
+    background: $gray-700;
+  }
+
   .grw-border-vr {
     border-color: $border-color-toc;
   }

packages/app/src/styles/theme/_apply-colors-light.scss

@@ -357,6 +357,11 @@ $dropdown-link-active-bg: $bgcolor-dropdown-link-active;
 * grw-side-contents
 */
 .grw-side-contents-sticky-container {
+  .grw-count-badge {
+    color: $gray-500;
+    background: $gray-200;
+  }
+
   .grw-border-vr {
     border-color: $border-color-toc;
   }