[MD History] Color tweaks.

chrome/browser/resources/md_history/history_toolbar.html

Index: chrome/browser/resources/md_history/history_toolbar.html
diff --git a/chrome/browser/resources/md_history/history_toolbar.html b/chrome/browser/resources/md_history/history_toolbar.html
index b799036160d0f85a1a66fe8cb48750d24f16d89a..a534da4d32826ca0fd733ae86615b2e5a0175fae 100644
--- a/chrome/browser/resources/md_history/history_toolbar.html
+++ b/chrome/browser/resources/md_history/history_toolbar.html
@@ -32,7 +32,7 @@
       }
 
       :host([items-selected_]) {
-        background: rgb(68, 136, 255);
+        background: var(--interactive-color);
       }
 
       #toolbar-container {
@@ -90,7 +90,7 @@
         @apply(--shadow-elevation-2dp);
         background-color: white;
         border-radius: 2px;
-        color: var(--paper-grey-800);
+        color: var(--primary-text-color);
         overflow: hidden;
         padding: 12px 20px;
       }