update

src/main/gtk-3.0/gtk-dark-solid.css

@@ -7235,6 +7235,10 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-accounts-editor-pane .geary-accounts-editor-pane-content .geary-labelled-row.geary-settings entry {
+  background-color: rgba(255, 255, 255, 0.05) !important;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;

src/main/gtk-3.0/gtk-dark.css

@@ -7231,6 +7231,10 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-accounts-editor-pane .geary-accounts-editor-pane-content .geary-labelled-row.geary-settings entry {
+  background-color: rgba(255, 255, 255, 0.05) !important;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;

src/main/gtk-3.0/gtk-light-solid.css

@@ -7250,6 +7250,10 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-accounts-editor-pane .geary-accounts-editor-pane-content .geary-labelled-row.geary-settings entry {
+  background-color: rgba(0, 0, 0, 0.05) !important;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;

src/main/gtk-3.0/gtk-light.css

@@ -7246,6 +7246,10 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-accounts-editor-pane .geary-accounts-editor-pane-content .geary-labelled-row.geary-settings entry {
+  background-color: rgba(0, 0, 0, 0.05) !important;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;

src/other/firefox/chrome/WhiteSur/parts/titlebutton-dark.css

@@ -14,6 +14,8 @@
 	background: url("../titlebuttons/titlebutton-minimize-dark.svg") no-repeat;
 	background-size: contain;
 }
+:root[tabsintitlebar] #titlebar .titlebar-buttonbox .titlebar-restore,
+:root[tabsintitlebar] #titlebar #titlebar-restore,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar .titlebar-buttonbox .titlebar-max,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar #titlebar-max {
 	background: url("../titlebuttons/titlebutton-maximize-dark.svg") no-repeat;
@@ -52,6 +54,8 @@
 	background-size: contain;
 	transition: background-size 300ms cubic-bezier(0.0, 0.0, 0.2, 1);
 }
+:root[tabsintitlebar] #titlebar .titlebar-buttonbox:hover .titlebar-restore,
+:root[tabsintitlebar] #titlebar #titlebar-restore:hover,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar .titlebar-buttonbox:hover .titlebar-max,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar #titlebar-max:hover {
 	background: url("../titlebuttons/titlebutton-unmaximize-hover-dark.svg") no-repeat;
@@ -72,6 +76,8 @@
 	background: url("../titlebuttons/titlebutton-minimize-active-dark.svg") no-repeat;
 	background-size: contain;
 }
+:root[tabsintitlebar] #titlebar .titlebar-buttonbox:active .titlebar-restore,
+:root[tabsintitlebar] #titlebar #titlebar-restore:active,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar .titlebar-buttonbox:active .titlebar-max:active,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar #titlebar-max:active {
 	background: url("../titlebuttons/titlebutton-unmaximize-active-dark.svg") no-repeat;
@@ -92,6 +98,8 @@
 	background: url("../titlebuttons/titlebutton-backdrop-dark.svg") no-repeat;
 	background-size: contain;
 }
+:root[tabsintitlebar] #titlebar:-moz-window-inactive .titlebar-buttonbox .titlebar-restore,
+:root[tabsintitlebar] #titlebar:-moz-window-inactive #titlebar-restore,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive .titlebar-buttonbox .titlebar-max,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive #titlebar-max {
 	background: url("../titlebuttons/titlebutton-backdrop-dark.svg") no-repeat;
@@ -112,6 +120,8 @@
 	background: url("../titlebuttons/titlebutton-minimize-backdrop-dark.svg") no-repeat;
 	background-size: contain;
 }
+:root[tabsintitlebar] #titlebar:-moz-window-inactive .titlebar-buttonbox:hover .titlebar-restore,
+:root[tabsintitlebar] #titlebar:-moz-window-inactive #titlebar-restore:hover,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive .titlebar-buttonbox:hover .titlebar-max,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive #titlebar-max:hover {
 	background: url("../titlebuttons/titlebutton-unmaximize-backdrop-dark.svg") no-repeat;

src/other/firefox/chrome/WhiteSur/parts/titlebutton-light.css

@@ -13,7 +13,6 @@
 	background: url("../titlebuttons/titlebutton-minimize.svg") no-repeat;
 	background-size: contain;
 }
-
 :root[tabsintitlebar] #titlebar .titlebar-buttonbox .titlebar-restore,
 :root[tabsintitlebar] #titlebar #titlebar-restore,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar .titlebar-buttonbox .titlebar-max,
@@ -120,6 +119,8 @@
 	background: url("../titlebuttons/titlebutton-minimize-backdrop.svg") no-repeat;
 	background-size: contain;
 }
+:root[tabsintitlebar] #titlebar:-moz-window-inactive .titlebar-buttonbox:hover .titlebar-restore,
+:root[tabsintitlebar] #titlebar:-moz-window-inactive #titlebar-restore:hover,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive .titlebar-buttonbox:hover .titlebar-max,
 :root[tabsintitlebar][sizemode="maximized"] #titlebar:-moz-window-inactive #titlebar-max:hover {
 	background: url("../titlebuttons/titlebutton-unmaximize-backdrop.svg") no-repeat;

src/sass/gtk/_applications.scss

@@ -2809,6 +2809,10 @@ window#GearyMainWindow.background.csd {
   }
 }
 
+.geary-settings {
+  entry { background-color: $entry_bg !important; }
+}
+
 //
 // * Firefox and Thunderbird *
 //