zen-browser: fix theming (#2237)

Link: https://github.com/nix-community/stylix/pull/2237

Reviewed-by: Karun Sandhu <129101708+MrSom3body@users.noreply.github.com>
Reviewed-by: 0xda157 <da157@voidq.com>
(cherry picked from commit e31c79f571)

flake/dev/flake.lock

@@ -318,11 +318,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1767763594,
-        "narHash": "sha256-5ysv8EuVAgDoYmNuXEUNf7vBzdeRaFxeIlIndv5HMvs=",
+        "lastModified": 1773290887,
+        "narHash": "sha256-L1yMYmFffHfZNP+hKJGRBmrFKkn/VDhu7jEbVftBQuM=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "8b2302d8c10369c9135552cc892da75cff5ddb03",
+        "rev": "9346698c4562819f61b4e5097151ec0b17729fab",
         "type": "github"
       },
       "original": {

modules/zen-browser/userChrome.nix

@@ -24,12 +24,18 @@ with colors;
     --zen-themed-toolbar-bg: #${base00-hex} !important;
     --zen-main-browser-background: #${base00-hex} !important;
     --toolbox-bgcolor-inactive: #${base01-hex} !important;
+    --zen-themed-toolbar-bg-transparent: #${base01-hex} !important;
   }
 
   #permissions-granted-icon {
     color: #${base05-hex} !important;
   }
 
+  #historySwipeAnimationPreviousArrow,#historySwipeAnimationNextArrow {
+    --swipe-nav-icon-primary-color: #${base0D-hex} !important;
+    --swipe-nav-icon-accent-color: #${base00-hex} !important;
+  }
+
   .sidebar-placesTree {
     background-color: #${base00-hex} !important;
   }
@@ -125,7 +131,7 @@ with colors;
     --identity-icon-color: #${base0F-hex} !important;
   }
 
-  #navigator-toolbox {
+  #zen-toolbar-background {
     --zen-main-browser-background-toolbar: #${base00-hex} !important;
   }
 
@@ -133,6 +139,14 @@ with colors;
     background-color: #${base00-hex} !important;
   }
 
+  #commonDialog {
+    background-color: #${base00-hex} !important;
+  }
+
+  #zen-browser-background {
+    --zen-main-browser-background: #${base00-hex} !important;
+  }
+
   #contentAreaContextMenu menu,
   menuitem,
   menupopup {