update

src/_sass/gtk/_common-4.0.scss

@@ -2178,6 +2178,7 @@ switch {
   // hide on/off icons for >=3.24.5
   image {
     margin: -8px;
+    color: transparent;
   }
 
   > slider {
@@ -3075,8 +3076,8 @@ $boxed-radius: $corner-radius - 1px;
 
 %boxed_list_row {
   transition: 200ms $ease-out;
-  border-bottom: 1px solid $divider;
   color: $text-secondary;
+  border-bottom: 1px solid $divider;
 
   .osd &:focus:focus-visible {
     outline-color: $fill;
@@ -3167,7 +3168,7 @@ list.boxed-list {
     }
 
     // Rounded bottom
-    &:last-child {
+    &:last-child, &:only-child {
       &,
       &.expander:not(:checked),
       &.expander:not(:checked) row.header,

src/gnome-shell/shell-40-0/gnome-shell-Compact.css

@@ -1380,6 +1380,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #ffffff;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1517,6 +1518,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #ffffff;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-40-0/gnome-shell-Dark-Compact.css

@@ -1380,6 +1380,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #202020;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1517,6 +1518,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #202020;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-40-0/gnome-shell-Dark.css

@@ -1380,6 +1380,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #202020;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1517,6 +1518,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #202020;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-40-0/gnome-shell.css

@@ -1380,6 +1380,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #ffffff;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1517,6 +1518,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #ffffff;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-42-0/gnome-shell-Compact.css

@@ -1435,6 +1435,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #ffffff;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1572,6 +1573,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #ffffff;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-42-0/gnome-shell-Dark-Compact.css

@@ -1435,6 +1435,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #202020;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1572,6 +1573,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #202020;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-42-0/gnome-shell-Dark.css

@@ -1435,6 +1435,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #202020;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1572,6 +1573,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #202020;
 }
 
 .prompt-dialog-password-grid {

src/gnome-shell/shell-42-0/gnome-shell.css

@@ -1435,6 +1435,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
   margin: 32px 40px;
   spacing: 32px;
   max-width: 28em;
+  background-color: #ffffff;
 }
 
 .modal-dialog .modal-dialog-linked-button {
@@ -1572,6 +1573,7 @@ StScrollBar StButton#vhandle:active, StScrollBar StButton#hhandle:active {
 
 .prompt-dialog .modal-dialog-content-box {
   margin-bottom: 24px;
+  background-color: #ffffff;
 }
 
 .prompt-dialog-password-grid {

src/gtk/4.0/gtk-Compact.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
   color: rgba(0, 0, 0, 0.6);
+  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 9px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 9px;
   border-bottom-right-radius: 9px;
   border-bottom-width: 0;

src/gtk/4.0/gtk-Dark-Compact.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
   color: rgba(255, 255, 255, 0.7);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 9px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 9px;
   border-bottom-right-radius: 9px;
   border-bottom-width: 0;

src/gtk/4.0/gtk-Dark.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
   color: rgba(255, 255, 255, 0.7);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 11px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 11px;
   border-bottom-right-radius: 11px;
   border-bottom-width: 0;

src/gtk/4.0/gtk-Light-Compact.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
   color: rgba(0, 0, 0, 0.6);
+  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 9px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 9px;
   border-bottom-right-radius: 9px;
   border-bottom-width: 0;

src/gtk/4.0/gtk-Light.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
   color: rgba(0, 0, 0, 0.6);
+  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 11px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 11px;
   border-bottom-right-radius: 11px;
   border-bottom-width: 0;

src/gtk/4.0/gtk.css

@@ -2484,6 +2484,7 @@ switch:disabled {
 
 switch image {
   margin: -8px;
+  color: transparent;
 }
 
 switch > slider {
@@ -3473,8 +3474,8 @@ list.content > row, list.content > row.expander row.header,
 list.boxed-list > row,
 list.boxed-list > row.expander row.header, row.expander list.nested > row {
   transition: 200ms cubic-bezier(0, 0, 0.2, 1);
-  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
   color: rgba(0, 0, 0, 0.6);
+  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
 }
 
 .osd list.content > row:focus:focus-visible, .osd list.content > row.expander row.header:focus:focus-visible, list.content > row.expander .osd row.header:focus:focus-visible,
@@ -3550,12 +3551,17 @@ list.boxed-list > row:first-child.expander row.header {
   border-top-right-radius: 11px;
 }
 
-list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child,
+list.content > row:last-child, list.content > row:last-child.expander:not(:checked), list.content > row:last-child.expander:not(:checked) row.header, list.content > row:last-child.expander:checked list.nested, list.content > row:last-child.expander:checked list.nested > row:last-child, list.content > row:only-child, list.content > row:only-child.expander:not(:checked), list.content > row:only-child.expander:not(:checked) row.header, list.content > row:only-child.expander:checked list.nested, list.content > row:only-child.expander:checked list.nested > row:last-child,
 list.boxed-list > row:last-child,
 list.boxed-list > row:last-child.expander:not(:checked),
 list.boxed-list > row:last-child.expander:not(:checked) row.header,
 list.boxed-list > row:last-child.expander:checked list.nested,
-list.boxed-list > row:last-child.expander:checked list.nested > row:last-child {
+list.boxed-list > row:last-child.expander:checked list.nested > row:last-child,
+list.boxed-list > row:only-child,
+list.boxed-list > row:only-child.expander:not(:checked),
+list.boxed-list > row:only-child.expander:not(:checked) row.header,
+list.boxed-list > row:only-child.expander:checked list.nested,
+list.boxed-list > row:only-child.expander:checked list.nested > row:last-child {
   border-bottom-left-radius: 11px;
   border-bottom-right-radius: 11px;
   border-bottom-width: 0;