New Change Summary - small fixes

* fix arrow to current change in submitted together
* set same color for icon in show all button in change metadata

Change-Id: I5ac76c2773d6561a5a68fe38fa4e7a7ae41e8ffe
diff --git a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_html.ts b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_html.ts
index cd17271..c5c73c5 100644
--- a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_html.ts
+++ b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_html.ts
@@ -115,6 +115,11 @@
          commit message box. Their top border should be on the same line. */
       margin-bottom: var(--spacing-s);
     }
+    .show-all-button iron-icon {
+      color: inherit;
+      --iron-icon-height: 18px;
+      --iron-icon-width: 18px;
+    }
   </style>
   <gr-external-style id="externalStyle" name="change-metadata">
     <template is="dom-if" if="[[_isNewChangeSummaryUiEnabled]]">
diff --git a/polygerrit-ui/app/elements/change/gr-related-changes-list-experimental/gr-related-changes-list-experimental.ts b/polygerrit-ui/app/elements/change/gr-related-changes-list-experimental/gr-related-changes-list-experimental.ts
index be48038..23627ae 100644
--- a/polygerrit-ui/app/elements/change/gr-related-changes-list-experimental/gr-related-changes-list-experimental.ts
+++ b/polygerrit-ui/app/elements/change/gr-related-changes-list-experimental/gr-related-changes-list-experimental.ts
@@ -148,7 +148,7 @@
               class="${classMap({
                 ['show-when-collapsed']: showWhenCollapsedPredicate(index),
               })}"
-              .currentChange="${this._changesEqual(change, this.change)}"
+              .isCurrentChange="${this._changesEqual(change, this.change)}"
               .change="${change}"
               .href="${GerritNav.getUrlForChangeById(
                 change._number,