Export/Dark Theme: Increase banner text contrast for legibility (#1415)

FREEBIE

stylesheets/android-dark.scss

@@ -18,6 +18,12 @@ $text-dark_l2: darken($text-dark, 30%);
   hr {
     border-color: $grey-dark;
   }
+  .expiredAlert {
+    color: $grey-dark;
+    button {
+      color: $grey-dark;
+    }
+  }
   #header {
     background-color: $grey-dark_l2;
     color: white;

stylesheets/manifest.css

@@ -2121,6 +2121,10 @@ li.entry .error-icon-container {
     color: #57a5e5; }
   .android-dark hr {
     border-color: #333333; }
+  .android-dark .expiredAlert {
+    color: #333333; }
+    .android-dark .expiredAlert button {
+      color: #333333; }
   .android-dark #header {
     background-color: #292929;
     color: white;