diff --git a/userStyles/zulip.css b/userStyles/zulip.css
index 0314fcb..53b090e 100644
--- a/userStyles/zulip.css
+++ b/userStyles/zulip.css
@@ -20,17 +20,25 @@
   background-color: #efebeb !important;
 }
 
+/* Background color for send button. */
+#message-send-controls-container,
+.message-send-controls {
+  filter: grayscale(1);
+}
+
 /* Background color for submit button. */
 .animated-purple-button {
   background-color: hsl(0, 0%, 50%) !important;
 }
 
 /* Recent conversations hover item. */
+.recent_view_container #recent_view_table tr:hover,
 .recent_topics_container #recent_topics_table tr:hover {
   background-color: hsl(0, 0%, 85%) !important;
 }
 
 /* Add border to avatars in recent conversations. */
+.recent_view_participant_avatar,
 .recent_topics_container #recent_topics_table .recent_topics_participant_avatar, .recent_topics_container #recent_topics_table .recent_topics_participant_overflow {
   outline: 2px solid #e0e0e0;
   outline-offset: -2px;
@@ -42,6 +50,7 @@
 }
 
 /* Color for focus indicator. */
+.recent_view_container #recent_view_table .recent_view_focusable:focus-within,
 .recent_topics_container #recent_topics_table .recent_topics_focusable:focus-within {
   box-shadow: 0 3px 0 #212121 !important;
 }
@@ -69,13 +78,18 @@ li.active-filter, li.active-sub-filter {
 
 /* Hide toolbar buttons. */
 .compose_bottom_bottom_container,
+#help-menu,
 #navbar-middle .search_closed,
+#searchbox_form,
 #userlist-toggle,
 #settings-dropdown {
   opacity: 0 !important;
 }
 .compose_bottom_bottom_container:hover,
+#help-menu:hover,
 #navbar-middle:hover .search_closed,
+#searchbox_form:hover,
+#searchbox_form:focus-within,
 #userlist-toggle:hover,
 #settings-dropdown:hover {
   opacity: 1 !important;