diff --git a/css/all.css b/css/all.css
index fb04270..ad53d0b 100644
--- a/css/all.css
+++ b/css/all.css
@@ -18,6 +18,7 @@
     background-color: var(--primary-color) !important;
 }
 
+#header>header,
 #header>header nav,
 #header>header nav li button._1Z0RM,
 #header>header nav li a._1Z0RM {
@@ -72,14 +73,17 @@ nav.nav-breadcrumb-nav-1251684582 span {
 
 /* Kept old classes to remain compatible with older versions of Schoology */
 .StandardHeader-header-drop-menu-YShpU,
-.Header-header-drop-menu-3SaYV {
+.Header-header-drop-menu-3SaYV,
+.HeaderDropMenu-menu-border-3vo5S {
     background-color: var(--hover-color) !important;
 }
 
 a.StandardHeader-header-drop-menu-YShpU:hover,
 .StandardHeader-header-drop-menu-YShpU li a:hover,
 a.Header-header-drop-menu-3SaYV:hover,
-.Header-header-drop-menu-3SaYV li a:hover {
+.Header-header-drop-menu-3SaYV li a:hover,
+a.HeaderDropMenu-menu-border-3vo5S:hover,
+.HeaderDropMenu-menu-border-3vo5S li a:hover {
     background-color: var(--background-color) !important;
 }
 
diff --git a/css/modern/all.css b/css/modern/all.css
index 3d858fc..c8e1dd4 100644
--- a/css/modern/all.css
+++ b/css/modern/all.css
@@ -344,6 +344,10 @@ variable-intellisense {
   background-color: var(--muted-text) !important;
 }
 
+:root[modern=true][dark=true] #header > header li svg.util-v2-icon-height-2N1T4 {
+  filter: Hue-Rotate(200deg) Invert(1) Saturate(2);
+}
+
 :root[modern=true] .popups-box .popups-body,
 :root[modern=true] #popups-loading div {
   background-color: var(--primary) !important;
@@ -774,19 +778,19 @@ variable-intellisense {
   background-color: var(--active) !important;
 }
 
-:root[modern=true] div.les2- {
+:root[modern=true] div.les2-, :root[modern=true] #header > header ul.util-width-thirty-nine-1B-gb {
   background-color: var(--secondary) !important;
 }
 
-:root[modern=true] div.les2- ._3skcp {
+:root[modern=true] div.les2- ._3skcp, :root[modern=true] #header > header ul.util-width-thirty-nine-1B-gb ._3skcp {
   border-color: var(--contrast-border) !important;
 }
 
-:root[modern=true] div.les2- ._1wP6w {
+:root[modern=true] div.les2- ._1wP6w, :root[modern=true] #header > header ul.util-width-thirty-nine-1B-gb ._1wP6w {
   color: var(--text) !important;
 }
 
-:root[modern=true] div.les2- ._2wOCj {
+:root[modern=true] div.les2- ._2wOCj, :root[modern=true] #header > header ul.util-width-thirty-nine-1B-gb ._2wOCj {
   color: var(--muted-text) !important;
 }
 
diff --git a/js/all.js b/js/all.js
index 1fe59f0..80aa685 100644
--- a/js/all.js
+++ b/js/all.js
@@ -914,7 +914,7 @@ let siteNavigationTileHelpers = {
         }
     });
 
-    for (let candidateLabel of document.querySelectorAll("#header nav ul > li span._1D8fw")) {
+    for (let candidateLabel of document.querySelectorAll("#header nav ul > li button > span")) {
         if (candidateLabel.textContent == "Courses") {
             // a span inside a button inside a div (inside a li)
             coursesDropdownContainer = candidateLabel.parentElement.parentElement;
@@ -979,7 +979,7 @@ let siteNavigationTileHelpers = {
         }
     });
 
-    for (let candidateLabel of document.querySelectorAll("#header nav ul > li span._1D8fw")) {
+    for (let candidateLabel of document.querySelectorAll("#header nav ul > li button > span")) {
         if (candidateLabel.textContent == "Groups") {
             // a span inside a button inside a div (inside a li)
             groupsDropdownContainer = candidateLabel.parentElement.parentElement;
diff --git a/js/version-specific.js b/js/version-specific.js
index c5d5c5f..f90c61c 100644
--- a/js/version-specific.js
+++ b/js/version-specific.js
@@ -123,8 +123,8 @@ function saveBroadcasts(broadcasts, callback = undefined) {
  * @param {Date|number} timestamp Timestamp to show as the post time in the home feed
  * @returns {Broadcast}
  */
-function createBroadcast(id, title, message, timestamp = Date.now()) {
-    return { id: String(id), title, message, timestamp: +timestamp };
+function createBroadcast(id, title, message, timestamp = Date.now(), expires = undefined) {
+    return { id: String(id), title, message, timestamp: +timestamp, expires: expires !== undefined ? +expires : undefined };
 }
 
 /**
@@ -298,6 +298,36 @@ let migrationsTo = {
             }
         }, 50);
     },
+    "7.8.6": function (currentVersion, previousVersion) {
+        saveBroadcasts([
+            createBroadcast(
+                670,
+                "Schoology Plus Fall 2023 Survey",
+                `
+                <div>
+                    <strong style="background: rgba(0,128,255,0.5) !important; color: white !important;">Take the Schoology Plus Fall 2023 Survey!</strong>
+                    <p>Occasionally we run this survey to understand how best to improve Schoology Plus for our users.</p>
+                    <p>Spend 10 minutes completing this year's survey and you'll be entered into a giveaway for one of
+                        <span style="background: rgb(255, 255, 0) !important; color: black !important; font-weight: bold;">20 Amazon gift cards totaling $150</span>
+                        : ten $10 cards and ten $5 cards, so <strong>your chance of winning is higher than ever before!</strong>
+                    </p>
+                    <p>Thank you for helping improve Schoology Plus! Your feedback is incredibly valuable to us and will likely impact to what extent Schoology Plus is improved in the future.</p>
+                    <p><a href="https://survey.schoologypl.us?source=ExtensionBroadcast&domain=${location.hostname}"><strong style="background: rgba(255,60,0,0.5) !important; color: white !important; font-size: 16px;">Click here to visit survey.schoologypl.us and take the survey now!</strong></a></p>
+                </div>
+                `,
+                new Date(2023, 9 /* October */, 15),
+                new Date(2023, 11 /* December */, 1) // expiration date
+            )
+        ]);
+
+        if (Date.now() < new Date(2023, 11 /* December */, 1)) {
+            showToast("Take the Schoology Plus Survey!", "Enter to win one of 20 Amazon gift cards!", "yellow", {
+                buttons: [
+                    createToastButton("Take Survey!", "toast-take-splus-survey-fall2023", (i, t, b) => window.open(`https://survey.schoologypl.us?source=ExtensionToast&domain=${location.hostname}`, "_blank"))
+                ]
+            });
+        }
+    }
 };
 
 async function versionSpecificFirstLaunch(currentVersion, previousVersion) {
diff --git a/manifest.json b/manifest.json
index e6be670..e7acd4e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -10,7 +10,7 @@
             "update_url": "https://schoologypl.us/firefox_updates.json"
         }
     },
-    "version": "7.8.5",
+    "version": "7.8.6",
     "icons": {
         "128": "imgs/icon@128.png",
         "64": "imgs/icon@64.png",
diff --git a/scss/modern/all.scss b/scss/modern/all.scss
index b5fbfef..6cb7473 100644
--- a/scss/modern/all.scss
+++ b/scss/modern/all.scss
@@ -379,6 +379,10 @@ variable-intellisense {
         }
     }
 
+    &[dark=true] #header > header li svg.util-v2-icon-height-2N1T4 {
+        filter: Hue-Rotate(200deg) Invert(1) Saturate(2);
+    }
+
     // Schoology Popups
 
     .popups-box .popups-body,
@@ -827,7 +831,7 @@ variable-intellisense {
 
     // Navbar menus
 
-    div.les2- {
+    div.les2-, #header > header ul.util-width-thirty-nine-1B-gb {
         background-color: var(--secondary) !important;
 
         ._3skcp {