diff --git a/apps/rowboat/app/projects/[projectId]/workflow/components/TopBar.tsx b/apps/rowboat/app/projects/[projectId]/workflow/components/TopBar.tsx
index b17704c9..0080e9d4 100644
--- a/apps/rowboat/app/projects/[projectId]/workflow/components/TopBar.tsx
+++ b/apps/rowboat/app/projects/[projectId]/workflow/components/TopBar.tsx
@@ -246,12 +246,12 @@ export function TopBar({
                         <Dropdown>
                             <DropdownTrigger>
                                 <Button variant="light" size="sm" aria-label="Layout options" className="h-8 min-w-0 bg-transparent text-zinc-700 dark:text-zinc-300 hover:bg-zinc-100/60 dark:hover:bg-zinc-800/50 border border-transparent gap-1 px-2">
-                                    {/* Unified icon: 3-pane visual */}
-                                    <svg width="20" height="14" viewBox="0 0 22 16" aria-hidden="true">
-                                        <rect x="1" y="1" width="20" height="14" rx="2" fill="none" stroke="currentColor" opacity=".55" />
-                                        <rect x="2.3" y="2.5" width="5.5" height="11" rx="1.2" fill="currentColor" opacity=".8" />
-                                        <rect x="8.5" y="2.5" width="6" height="11" rx="1.2" fill="currentColor" opacity=".5" />
-                                        <rect x="15.5" y="2.5" width="5.5" height="11" rx="1.2" fill="currentColor" opacity=".4" />
+                                    {/* 3-pane layout icon */}
+                                    <svg width="26" height="18" viewBox="0 0 18 12" aria-hidden="true">
+                                        <rect x="0.5" y="0.5" width="17" height="11" rx="1" fill="none" stroke="currentColor" strokeWidth="1" opacity="0.6" />
+                                        <rect x="2" y="2" width="4" height="8" rx="0.5" fill="currentColor" opacity="0.8" />
+                                        <rect x="7" y="2" width="4" height="8" rx="0.5" fill="currentColor" opacity="0.6" />
+                                        <rect x="12" y="2" width="4" height="8" rx="0.5" fill="currentColor" opacity="0.4" />
                                     </svg>
                                     <ChevronDownIcon size={14} />
                                 </Button>