diff --git a/app/assets/images/notification-bell-invisible.svg b/app/assets/images/notification-bell-invisible.svg
deleted file mode 100644
index 7d18107c..00000000
--- a/app/assets/images/notification-bell-invisible.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="m2 5.27 1.28-1.27 16.72 16.72-1.27 1.28-3.08-3.08c-1.15.38-2.37.58-3.65.58-5 0-9.27-3.11-11-7.5.69-1.76 1.79-3.31 3.19-4.54zm10 3.73a3 3 0 0 1 3 3c0 .35-.06.69-.17 1l-3.83-3.83c.31-.11.65-.17 1-.17m0-4.5c5 0 9.27 3.11 11 7.5-.82 2.08-2.21 3.88-4 5.19l-1.42-1.43c1.36-.94 2.48-2.22 3.24-3.76-1.65-3.36-5.06-5.5-8.82-5.5-1.09 0-2.16.18-3.16.5l-1.54-1.53c1.44-.62 3.03-.97 4.7-.97m-8.82 7.5c1.65 3.36 5.06 5.5 8.82 5.5.69 0 1.37-.07 2-.21l-2.28-2.29c-1.43-.15-2.57-1.29-2.72-2.72l-3.4-3.41c-.99.85-1.82 1.91-2.42 3.13z"/></svg>
\ No newline at end of file
diff --git a/app/assets/stylesheets/application/base.css b/app/assets/stylesheets/application/base.css
index 179bd234..a07c15ad 100644
--- a/app/assets/stylesheets/application/base.css
+++ b/app/assets/stylesheets/application/base.css
@@ -98,10 +98,6 @@ legend {
   text-align: center;
 }
 
-.membership-item:has(.btn.invisible) {
-  opacity: 0.5;
-}
-
 /* Dialogs */
 .dialog {
   --width: 50ch;
diff --git a/app/assets/stylesheets/application/buttons.css b/app/assets/stylesheets/application/buttons.css
index 06bf9950..ee4ba1ee 100644
--- a/app/assets/stylesheets/application/buttons.css
+++ b/app/assets/stylesheets/application/buttons.css
@@ -122,16 +122,14 @@
 
 /* Default state: buttons have borders */
 .btn.everything,
-.btn.mentions,
-.btn.invisible {
+.btn.mentions {
   border: var(--btn-border-size, 1px) solid
     var(--btn-border-color, var(--color-border-darker));
 }
 
 /* Remove borders only for involvement buttons in the sidebar */
 [data-type="list_node"] .btn.everything,
-[data-type="list_node"] .btn.mentions,
-[data-type="list_node"] .btn.invisible {
+[data-type="list_node"] .btn.mentions {
   border: 0;
 }
 
@@ -251,8 +249,7 @@ button {
 
 /* Make involvement buttons in the navbar consistent with edit-room button */
 .flex.gap-half.align-center .btn.everything,
-.flex.gap-half.align-center .btn.mentions,
-.flex.gap-half.align-center .btn.invisible {
+.flex.gap-half.align-center .btn.mentions {
   height: var(--navbar-btn-size);
   width: var(--navbar-btn-size);
   padding: 0;
@@ -262,8 +259,7 @@ button {
 }
 
 .flex.gap-half.align-center .btn.everything img,
-.flex.gap-half.align-center .btn.mentions img,
-.flex.gap-half.align-center .btn.invisible img {
+.flex.gap-half.align-center .btn.mentions img {
   width: 18px;
   height: 18px;
 }
@@ -283,8 +279,7 @@ a.btn[data-room-id] img {
 
 /* Hide text in navbar involvement buttons to match other circular buttons */
 .flex.gap-half.align-center .btn.everything .for-screen-reader,
-.flex.gap-half.align-center .btn.mentions .for-screen-reader,
-.flex.gap-half.align-center .btn.invisible .for-screen-reader {
+.flex.gap-half.align-center .btn.mentions .for-screen-reader {
   position: absolute;
   width: 1px;
   height: 1px;
diff --git a/app/helpers/rooms/involvements_helper.rb b/app/helpers/rooms/involvements_helper.rb
index 63d1908f..bb518ab8 100644
--- a/app/helpers/rooms/involvements_helper.rb
+++ b/app/helpers/rooms/involvements_helper.rb
@@ -15,21 +15,17 @@ def button_to_change_involvement(room, involvement, from_sidebar: false)
   private
     HUMANIZE_INVOLVEMENT = {
       "mentions" => "Room in All Rooms",
-      "everything" => "Room in My Rooms",
-      "invisible" => "Room hidden from sidebar"
+      "everything" => "Room in My Rooms"
     }
 
-    SHARED_INVOLVEMENT_ORDER = %w[ mentions everything invisible ]
-    SHARED_SIDEBAR_INVOLVEMENT_ORDER = %w[ mentions everything ]
+    SHARED_INVOLVEMENT_ORDER = %w[ mentions everything ]
     DIRECT_INVOLVEMENT_ORDER = %w[ everything nothing ]
 
     def next_involvement_for(room, involvement:, from_sidebar: false)
       if room.direct?
         DIRECT_INVOLVEMENT_ORDER[DIRECT_INVOLVEMENT_ORDER.index(involvement) + 1] || DIRECT_INVOLVEMENT_ORDER.first
-      elsif from_sidebar
-        SHARED_SIDEBAR_INVOLVEMENT_ORDER[(SHARED_SIDEBAR_INVOLVEMENT_ORDER.index(involvement) || 0) + 1] || SHARED_SIDEBAR_INVOLVEMENT_ORDER.first
       else
-        SHARED_INVOLVEMENT_ORDER[SHARED_INVOLVEMENT_ORDER.index(involvement) + 1] || SHARED_INVOLVEMENT_ORDER.first
+        SHARED_INVOLVEMENT_ORDER[(SHARED_INVOLVEMENT_ORDER.index(involvement) || 0) + 1] || SHARED_INVOLVEMENT_ORDER.first
       end
     end
 end
diff --git a/app/models/rooms/thread.rb b/app/models/rooms/thread.rb
index 5fdf1041..11498352 100644
--- a/app/models/rooms/thread.rb
+++ b/app/models/rooms/thread.rb
@@ -6,7 +6,7 @@ def default_involvement(user: nil)
     if user.present? && (user == creator || user == parent_message&.creator)
       "everything"
     else
-      "invisible"
+      "mentions"
     end
   end
 end