diff --git a/src/main/gtk-3.0/gtk-dark.css b/src/main/gtk-3.0/gtk-dark.css
index 6867d2a6..4eb8fe88 100644
--- a/src/main/gtk-3.0/gtk-dark.css
+++ b/src/main/gtk-3.0/gtk-dark.css
@@ -2484,7 +2484,7 @@ headerbar > box.right {
   padding: 0 6px;
 }
 
-headerbar separator.titlebutton {
+headerbar separator.titlebutton, headerbar separator.sidebar {
   margin-top: 12px;
   margin-bottom: 12px;
   background-color: transparent;
@@ -4162,7 +4162,9 @@ separator {
   background-color: rgba(255, 255, 255, 0.12);
 }
 
-preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
+preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, window.background.csd > leaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > hdyleaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > viewport.frame > stack list separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
 stacksidebar.sidebar separator.horizontal, button.font separator, button.file separator {
   min-width: 0;
   min-height: 0;
@@ -5642,6 +5644,10 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd hdycolumn stack frame.view > stack > stack list > separator {
+  background-color: rgba(255, 255, 255, 0.12);
+}
+
 dialog.background.csd > box.vertical.dialog-vbox > notebook > stack > box.horizontal > notebook > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -7620,7 +7626,7 @@ MsdOsdWindow.background.osd .progressbar {
   border-style: solid;
   border-width: 1px;
   border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.3);
-  border-radius: 6px;
+  border-radius: 12px;
   box-shadow: 0 2px 2.4px -1px rgba(0, 0, 0, 0.2), 0 4px 3px 0 rgba(0, 0, 0, 0.14), 0 1px 6px 0 rgba(0, 0, 0, 0.12);
   background-color: #3C3C3C;
 }
@@ -7649,10 +7655,6 @@ MsdOsdWindow.background.osd .progressbar {
   box-shadow: none;
 }
 
-.budgie-popover row button {
-  border-radius: 0px;
-}
-
 .budgie-popover scrolledwindow.sidebar.categories {
   background-color: rgba(255, 255, 255, 0.04);
 }
@@ -7660,16 +7662,29 @@ MsdOsdWindow.background.osd .progressbar {
 .budgie-popover scrolledwindow.sidebar:not(.categories) {
   background-color: rgba(255, 255, 255, 0.04);
   border-right: none;
-  border-bottom-left-radius: 6px;
+  border-bottom-left-radius: 12px;
 }
 
 .budgie-popover scrolledwindow.sidebar:not(.categories) list > row.activatable {
   padding: 6px 8px;
 }
 
+.budgie-popover treeview.view.sidebar, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view {
+  border-right: none;
+  background: none;
+}
+
+.budgie-popover treeview.view.sidebar:hover, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:hover, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:hover {
+  background-color: alpha(currentColor, 0.08);
+}
+
+.budgie-popover treeview.view.sidebar:selected, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:selected, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:selected {
+  background-color: alpha(currentColor, 0.12);
+}
+
 .budgie-popover.bottom scrolledwindow.sidebar:not(.categories) {
-  padding-top: 6px;
-  border-top-left-radius: 6px;
+  padding-top: 12px;
+  border-top-left-radius: 12px;
   border-bottom-left-radius: 0;
 }
 
@@ -7691,7 +7706,7 @@ MsdOsdWindow.background.osd .progressbar {
   padding: 0 8px;
   color: white;
   font-weight: normal;
-  border-radius: 0px;
+  border-radius: 6px;
 }
 
 .budgie-popover button.flat:not(.image-button):disabled {
@@ -7888,7 +7903,7 @@ MsdOsdWindow.background.osd .progressbar {
 }
 
 .budgie-panel.transparent {
-  background-color: #242424;
+  background-color: rgba(33, 33, 33, 0.75);
 }
 
 .budgie-panel button {
@@ -8092,7 +8107,7 @@ frame.raven-frame > border {
 .raven .raven-header.top stackswitcher button {
   margin: -4px 0 -5px;
   padding: 0 16px;
-  min-height: 36px;
+  min-height: 24px;
 }
 
 .raven .raven-header.bottom {
@@ -8125,6 +8140,7 @@ frame.raven-frame > border {
 .raven .powerstrip button {
   margin: 2px 0 1px;
   padding: 12px;
+  border-radius: 9999px;
 }
 
 .raven .option-subtitle {
@@ -8182,6 +8198,42 @@ calendar.raven-calendar:selected {
   padding: 12px;
 }
 
+.raven-notifications-view > .raven-background > viewport.frame {
+  padding: 0;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable {
+  margin-left: -6px;
+  margin-right: -3px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable .raven-notifications-group-header {
+  padding: 0 12px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list {
+  padding: 6px;
+  background: none;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable {
+  border: none;
+  padding: 6px;
+  padding-left: 12px;
+  margin: 3px;
+  border-radius: 6px;
+  background-color: rgba(255, 255, 255, 0.04);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:selected {
+  background-color: rgba(255, 255, 255, 0.12);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:active, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:focus {
+  background: none;
+  box-shadow: none;
+}
+
 .budgie-notification-window, .budgie-switcher-window, .budgie-osd-window {
   background-color: transparent;
 }
@@ -8217,16 +8269,24 @@ calendar.raven-calendar:selected {
 .budgie-session-dialog,
 .budgie-polkit-dialog,
 .budgie-run-dialog {
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.1);
   background-color: #3C3C3C;
+  border: none;
+  padding: 0;
 }
 
-.budgie-session-dialog.background.csd, .budgie-session-dialog decoration,
-.budgie-polkit-dialog.background.csd,
-.budgie-polkit-dialog decoration,
-.budgie-run-dialog.background.csd,
-.budgie-run-dialog decoration {
-  border-radius: 12px 12px 12px 12px;
+.budgie-session-dialog.background, .budgie-session-dialog > decoration,
+.budgie-polkit-dialog.background,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog.background,
+.budgie-run-dialog > decoration {
+  border-radius: 12px;
+}
+
+.budgie-session-dialog > decoration,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog > decoration {
+  border: none;
+  box-shadow: 0 8px 6px -5px rgba(0, 0, 0, 0.2), 0 16px 14.4px 2px rgba(0, 0, 0, 0.14), 0 6px 18px 5px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.75);
 }
 
 .budgie-session-dialog label:not(:last-child),
diff --git a/src/main/gtk-3.0/gtk-light.css b/src/main/gtk-3.0/gtk-light.css
index e058b8d0..3b983861 100644
--- a/src/main/gtk-3.0/gtk-light.css
+++ b/src/main/gtk-3.0/gtk-light.css
@@ -2484,7 +2484,7 @@ headerbar > box.right {
   padding: 0 6px;
 }
 
-headerbar separator.titlebutton {
+headerbar separator.titlebutton, headerbar separator.sidebar {
   margin-top: 12px;
   margin-bottom: 12px;
   background-color: transparent;
@@ -4162,7 +4162,9 @@ separator {
   background-color: rgba(0, 0, 0, 0.12);
 }
 
-preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
+preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, window.background.csd > leaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > hdyleaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > viewport.frame > stack list separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
 stacksidebar.sidebar separator.horizontal, button.font separator, button.file separator {
   min-width: 0;
   min-height: 0;
@@ -5636,6 +5638,10 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd hdycolumn stack frame.view > stack > stack list > separator {
+  background-color: rgba(0, 0, 0, 0.12);
+}
+
 dialog.background.csd > box.vertical.dialog-vbox > notebook > stack > box.horizontal > notebook > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -7614,7 +7620,7 @@ MsdOsdWindow.background.osd .progressbar {
   border-style: solid;
   border-width: 1px;
   border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.3);
-  border-radius: 6px;
+  border-radius: 12px;
   box-shadow: 0 2px 2.4px -1px rgba(0, 0, 0, 0.2), 0 4px 3px 0 rgba(0, 0, 0, 0.14), 0 1px 6px 0 rgba(0, 0, 0, 0.12);
   background-color: #FFFFFF;
 }
@@ -7643,10 +7649,6 @@ MsdOsdWindow.background.osd .progressbar {
   box-shadow: none;
 }
 
-.budgie-popover row button {
-  border-radius: 0px;
-}
-
 .budgie-popover scrolledwindow.sidebar.categories {
   background-color: rgba(0, 0, 0, 0.04);
 }
@@ -7654,16 +7656,29 @@ MsdOsdWindow.background.osd .progressbar {
 .budgie-popover scrolledwindow.sidebar:not(.categories) {
   background-color: rgba(0, 0, 0, 0.04);
   border-right: none;
-  border-bottom-left-radius: 6px;
+  border-bottom-left-radius: 12px;
 }
 
 .budgie-popover scrolledwindow.sidebar:not(.categories) list > row.activatable {
   padding: 6px 8px;
 }
 
+.budgie-popover treeview.view.sidebar, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view {
+  border-right: none;
+  background: none;
+}
+
+.budgie-popover treeview.view.sidebar:hover, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:hover, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:hover {
+  background-color: alpha(currentColor, 0.08);
+}
+
+.budgie-popover treeview.view.sidebar:selected, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:selected, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:selected {
+  background-color: alpha(currentColor, 0.12);
+}
+
 .budgie-popover.bottom scrolledwindow.sidebar:not(.categories) {
-  padding-top: 6px;
-  border-top-left-radius: 6px;
+  padding-top: 12px;
+  border-top-left-radius: 12px;
   border-bottom-left-radius: 0;
 }
 
@@ -7685,7 +7700,7 @@ MsdOsdWindow.background.osd .progressbar {
   padding: 0 8px;
   color: rgba(0, 0, 0, 0.87);
   font-weight: normal;
-  border-radius: 0px;
+  border-radius: 6px;
 }
 
 .budgie-popover button.flat:not(.image-button):disabled {
@@ -7882,7 +7897,7 @@ MsdOsdWindow.background.osd .progressbar {
 }
 
 .budgie-panel.transparent {
-  background-color: #242424;
+  background-color: rgba(242, 242, 242, 0.75);
 }
 
 .budgie-panel button {
@@ -8086,7 +8101,7 @@ frame.raven-frame > border {
 .raven .raven-header.top stackswitcher button {
   margin: -4px 0 -5px;
   padding: 0 16px;
-  min-height: 36px;
+  min-height: 24px;
 }
 
 .raven .raven-header.bottom {
@@ -8119,6 +8134,7 @@ frame.raven-frame > border {
 .raven .powerstrip button {
   margin: 2px 0 1px;
   padding: 12px;
+  border-radius: 9999px;
 }
 
 .raven .option-subtitle {
@@ -8176,6 +8192,42 @@ calendar.raven-calendar:selected {
   padding: 12px;
 }
 
+.raven-notifications-view > .raven-background > viewport.frame {
+  padding: 0;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable {
+  margin-left: -6px;
+  margin-right: -3px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable .raven-notifications-group-header {
+  padding: 0 12px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list {
+  padding: 6px;
+  background: none;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable {
+  border: none;
+  padding: 6px;
+  padding-left: 12px;
+  margin: 3px;
+  border-radius: 6px;
+  background-color: rgba(0, 0, 0, 0.04);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:selected {
+  background-color: rgba(0, 0, 0, 0.12);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:active, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:focus {
+  background: none;
+  box-shadow: none;
+}
+
 .budgie-notification-window, .budgie-switcher-window, .budgie-osd-window {
   background-color: transparent;
 }
@@ -8211,16 +8263,24 @@ calendar.raven-calendar:selected {
 .budgie-session-dialog,
 .budgie-polkit-dialog,
 .budgie-run-dialog {
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.15);
   background-color: #FFFFFF;
+  border: none;
+  padding: 0;
 }
 
-.budgie-session-dialog.background.csd, .budgie-session-dialog decoration,
-.budgie-polkit-dialog.background.csd,
-.budgie-polkit-dialog decoration,
-.budgie-run-dialog.background.csd,
-.budgie-run-dialog decoration {
-  border-radius: 12px 12px 12px 12px;
+.budgie-session-dialog.background, .budgie-session-dialog > decoration,
+.budgie-polkit-dialog.background,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog.background,
+.budgie-run-dialog > decoration {
+  border-radius: 12px;
+}
+
+.budgie-session-dialog > decoration,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog > decoration {
+  border: none;
+  box-shadow: 0 8px 6px -5px rgba(0, 0, 0, 0.2), 0 16px 14.4px 2px rgba(0, 0, 0, 0.14), 0 6px 18px 5px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.12);
 }
 
 .budgie-session-dialog label:not(:last-child),
diff --git a/src/main/gtk-3.0/gtk.css b/src/main/gtk-3.0/gtk.css
index 76621620..0f53211f 100644
--- a/src/main/gtk-3.0/gtk.css
+++ b/src/main/gtk-3.0/gtk.css
@@ -2493,7 +2493,7 @@ headerbar > box.right {
   padding: 0 6px;
 }
 
-headerbar separator.titlebutton {
+headerbar separator.titlebutton, headerbar separator.sidebar {
   margin-top: 12px;
   margin-bottom: 12px;
   background-color: transparent;
@@ -4171,7 +4171,9 @@ separator {
   background-color: rgba(0, 0, 0, 0.12);
 }
 
-preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
+preferences stacksidebar.sidebar list separator, hdyleaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, leaflet > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, box.horizontal > stack.background > box.vertical > scrolledwindow > viewport.frame list:not(.view):not(.tweak-group) separator, window.background.csd > leaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > hdyleaflet > box.vertical > scrolledwindow.view > viewport.frame > stack list separator,
+window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > viewport.frame > stack list separator, .tweak-categories separator, placessidebar.sidebar list > separator, stacksidebar.sidebar + separator.vertical,
 stacksidebar.sidebar separator.horizontal, button.font separator, button.file separator {
   min-width: 0;
   min-height: 0;
@@ -5645,6 +5647,10 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd hdycolumn stack frame.view > stack > stack list > separator {
+  background-color: rgba(0, 0, 0, 0.12);
+}
+
 dialog.background.csd > box.vertical.dialog-vbox > notebook > stack > box.horizontal > notebook > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -7623,7 +7629,7 @@ MsdOsdWindow.background.osd .progressbar {
   border-style: solid;
   border-width: 1px;
   border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.3);
-  border-radius: 6px;
+  border-radius: 12px;
   box-shadow: 0 2px 2.4px -1px rgba(0, 0, 0, 0.2), 0 4px 3px 0 rgba(0, 0, 0, 0.14), 0 1px 6px 0 rgba(0, 0, 0, 0.12);
   background-color: #FFFFFF;
 }
@@ -7652,10 +7658,6 @@ MsdOsdWindow.background.osd .progressbar {
   box-shadow: none;
 }
 
-.budgie-popover row button {
-  border-radius: 0px;
-}
-
 .budgie-popover scrolledwindow.sidebar.categories {
   background-color: rgba(0, 0, 0, 0.04);
 }
@@ -7663,16 +7665,29 @@ MsdOsdWindow.background.osd .progressbar {
 .budgie-popover scrolledwindow.sidebar:not(.categories) {
   background-color: rgba(0, 0, 0, 0.04);
   border-right: none;
-  border-bottom-left-radius: 6px;
+  border-bottom-left-radius: 12px;
 }
 
 .budgie-popover scrolledwindow.sidebar:not(.categories) list > row.activatable {
   padding: 6px 8px;
 }
 
+.budgie-popover treeview.view.sidebar, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view {
+  border-right: none;
+  background: none;
+}
+
+.budgie-popover treeview.view.sidebar:hover, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:hover, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:hover {
+  background-color: alpha(currentColor, 0.08);
+}
+
+.budgie-popover treeview.view.sidebar:selected, .budgie-popover filechooser stack.view scrolledwindow treeview.sidebar.view:selected, filechooser stack.view scrolledwindow .budgie-popover treeview.sidebar.view:selected {
+  background-color: alpha(currentColor, 0.12);
+}
+
 .budgie-popover.bottom scrolledwindow.sidebar:not(.categories) {
-  padding-top: 6px;
-  border-top-left-radius: 6px;
+  padding-top: 12px;
+  border-top-left-radius: 12px;
   border-bottom-left-radius: 0;
 }
 
@@ -7694,7 +7709,7 @@ MsdOsdWindow.background.osd .progressbar {
   padding: 0 8px;
   color: rgba(0, 0, 0, 0.87);
   font-weight: normal;
-  border-radius: 0px;
+  border-radius: 6px;
 }
 
 .budgie-popover button.flat:not(.image-button):disabled {
@@ -7891,7 +7906,7 @@ MsdOsdWindow.background.osd .progressbar {
 }
 
 .budgie-panel.transparent {
-  background-color: #242424;
+  background-color: rgba(33, 33, 33, 0.75);
 }
 
 .budgie-panel button {
@@ -8095,7 +8110,7 @@ frame.raven-frame > border {
 .raven .raven-header.top stackswitcher button {
   margin: -4px 0 -5px;
   padding: 0 16px;
-  min-height: 36px;
+  min-height: 24px;
 }
 
 .raven .raven-header.bottom {
@@ -8128,6 +8143,7 @@ frame.raven-frame > border {
 .raven .powerstrip button {
   margin: 2px 0 1px;
   padding: 12px;
+  border-radius: 9999px;
 }
 
 .raven .option-subtitle {
@@ -8185,6 +8201,42 @@ calendar.raven-calendar:selected {
   padding: 12px;
 }
 
+.raven-notifications-view > .raven-background > viewport.frame {
+  padding: 0;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable {
+  margin-left: -6px;
+  margin-right: -3px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable .raven-notifications-group-header {
+  padding: 0 12px;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list {
+  padding: 6px;
+  background: none;
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable {
+  border: none;
+  padding: 6px;
+  padding-left: 12px;
+  margin: 3px;
+  border-radius: 6px;
+  background-color: rgba(0, 0, 0, 0.04);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable list > row.activatable:selected {
+  background-color: rgba(0, 0, 0, 0.12);
+}
+
+.raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:selected:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:hover, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:active, .raven-notifications-view > .raven-background > viewport.frame > list > row.activatable:focus {
+  background: none;
+  box-shadow: none;
+}
+
 .budgie-notification-window, .budgie-switcher-window, .budgie-osd-window {
   background-color: transparent;
 }
@@ -8220,16 +8272,24 @@ calendar.raven-calendar:selected {
 .budgie-session-dialog,
 .budgie-polkit-dialog,
 .budgie-run-dialog {
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.15);
   background-color: #FFFFFF;
+  border: none;
+  padding: 0;
 }
 
-.budgie-session-dialog.background.csd, .budgie-session-dialog decoration,
-.budgie-polkit-dialog.background.csd,
-.budgie-polkit-dialog decoration,
-.budgie-run-dialog.background.csd,
-.budgie-run-dialog decoration {
-  border-radius: 12px 12px 12px 12px;
+.budgie-session-dialog.background, .budgie-session-dialog > decoration,
+.budgie-polkit-dialog.background,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog.background,
+.budgie-run-dialog > decoration {
+  border-radius: 12px;
+}
+
+.budgie-session-dialog > decoration,
+.budgie-polkit-dialog > decoration,
+.budgie-run-dialog > decoration {
+  border: none;
+  box-shadow: 0 8px 6px -5px rgba(0, 0, 0, 0.2), 0 16px 14.4px 2px rgba(0, 0, 0, 0.14), 0 6px 18px 5px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.12);
 }
 
 .budgie-session-dialog label:not(:last-child),
diff --git a/src/sass/gtk/_common-3.0.scss b/src/sass/gtk/_common-3.0.scss
index 66c3d1ad..25f66f28 100644
--- a/src/sass/gtk/_common-3.0.scss
+++ b/src/sass/gtk/_common-3.0.scss
@@ -1375,7 +1375,7 @@ headerbar {
     @extend %titlebar-button;
   }
 
-  separator.titlebutton {
+  separator.titlebutton, separator.sidebar {
     margin-top: $large-size / 4;
     margin-bottom: $large-size / 4;
     background-color: transparent;
diff --git a/src/sass/gtk/apps/_budgie.scss b/src/sass/gtk/apps/_budgie.scss
index 40324b81..c1e5521a 100644
--- a/src/sass/gtk/apps/_budgie.scss
+++ b/src/sass/gtk/apps/_budgie.scss
@@ -30,7 +30,7 @@
   border-style: solid;
   border-width: 1px;
   border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.3);
-  border-radius: $corner-radius;
+  border-radius: $menu-radius;
   box-shadow: $shadow-z4;
   background-color: $surface;
 
@@ -49,7 +49,7 @@
 
     button {
       @extend %button-flat-simple;
-      border-radius: $corner-radius - $space-size;
+      // border-radius: $corner-radius;
     }
   }
 
@@ -61,7 +61,7 @@
   scrolledwindow.sidebar:not(.categories) {
     background-color: $fill;
     border-right: none;
-    border-bottom-left-radius: $corner-radius;
+    border-bottom-left-radius: $menu-radius;
 
     list > row.activatable {
       @extend %row_activatable;
@@ -69,9 +69,17 @@
     }
   }
 
+  treeview.view.sidebar {
+    border-right: none;
+    background: none;
+
+    &:hover { background-color: $overlay-hover; }
+    &:selected { background-color: $overlay-active; }
+  }
+
   &.bottom scrolledwindow.sidebar:not(.categories) {
-    padding-top: $corner-radius;
-    border-top-left-radius: $corner-radius;
+    padding-top: $menu-radius;
+    border-top-left-radius: $menu-radius;
     border-bottom-left-radius: 0;
   }
 
@@ -95,7 +103,7 @@
     padding: 0 8px;
     color: $text;
     font-weight: normal;
-    border-radius: $corner-radius - $space-size;
+    border-radius: $corner-radius;
 
     &:disabled { color: $text-disabled; }
   }
@@ -167,8 +175,8 @@
 
     .name-button {
       image {
-        &:dir(ltr) { margin-right: 8px - 5px; }
-        &:dir(rtl) { margin-left: 8px - 5px; }
+        &:dir(ltr) { margin-right: $space-size / 2; }
+        &:dir(rtl) { margin-left: $space-size / 2; }
       }
     }
 
@@ -295,7 +303,7 @@
   color: on($panel, secondary);
   font-weight: 500;
 
-  &.transparent { background-color: $scrim; }
+  &.transparent { background-color: rgba($panel, 0.75); }
 
   button {
     @extend %button-flat-simple;
@@ -491,7 +499,7 @@ $pos_list: ((top, bottom), (bottom, top), (left, right), (right, left));
       stackswitcher button {
         margin: -4px 0 -5px; // remove unwanted vertical margins
         padding: 0 16px;
-        min-height: $medium-size;
+        min-height: $small-size;
       }
     }
 
@@ -522,6 +530,7 @@ $pos_list: ((top, bottom), (bottom, top), (left, right), (right, left));
   .powerstrip button {
     margin: 2px 0 1px;
     padding: ($large-size - 24px) / 2;
+    border-radius: $circular-radius;
   }
 
   .option-subtitle { font-size: smaller; }
@@ -585,6 +594,44 @@ calendar.raven-calendar {
   }
 }
 
+// notification list
+.raven-notifications-view {
+  > .raven-background > viewport.frame {
+    padding: 0; // reset padding for full-width list node
+
+    > list > row.activatable {
+      margin-left: -$space-size;
+      margin-right: -$space-size / 2;
+
+      .raven-notifications-group-header { padding: 0 $space-size * 2; }
+
+      // sub-list rows grouping
+      list {
+        padding: $space-size;
+        background: none;
+
+        > row.activatable {
+          border: none;
+          padding: $space-size;
+          padding-left: $space-size * 2;
+          margin: $space-size / 2;
+          border-radius: $corner-radius;
+          background-color: $fill;
+
+          &:hover, &:selected {
+            background-color: $divider;
+          }
+        }
+      }
+
+      &:selected, &:selected:hover, &:hover, &:active, &:focus {
+        background: none;
+        box-shadow: none;
+      }
+    }
+  }
+}
+
 // Notifications
 .budgie-notification-window { background-color: transparent; }
 
@@ -633,8 +680,9 @@ calendar.raven-calendar {
 }
 
 %budgie_dialog {
-  box-shadow: inset 0 1px highlight($surface);
   background-color: $surface;
+  border: none;
+  padding: 0;
 }
 
 // Session Dialog
@@ -643,7 +691,14 @@ calendar.raven-calendar {
 .budgie-run-dialog {
   @extend %budgie_dialog;
 
-  &.background.csd, decoration { border-radius: $window-radius $window-radius $window-radius $window-radius; }
+  &.background, & > decoration {
+    border-radius: $window-radius;
+  }
+
+  & > decoration {
+    border: none;
+    box-shadow: $shadow-z16, 0 0 0 1px $window-border;
+  }
 
   label:not(:last-child),
   .dialog-title {
diff --git a/src/sass/gtk/apps/_gnome-3.0.scss b/src/sass/gtk/apps/_gnome-3.0.scss
index 69b79e8d..3201a400 100644
--- a/src/sass/gtk/apps/_gnome-3.0.scss
+++ b/src/sass/gtk/apps/_gnome-3.0.scss
@@ -588,10 +588,16 @@ window.background.csd {
               background-color: transparent;
             }
           }
+
+          separator { @extend %hide_separators; }
         }
       }
     }
   }
+
+  hdycolumn stack frame.view > stack > stack list > separator {
+    background-color: $border;
+  }
 }
 
 dialog.background.csd {