diff --git a/packages/frontend/src/components/LayoutRenderer.vue b/packages/frontend/src/components/LayoutRenderer.vue
index db09405..97b943e 100644
--- a/packages/frontend/src/components/LayoutRenderer.vue
+++ b/packages/frontend/src/components/LayoutRenderer.vue
@@ -709,10 +709,12 @@ onMounted(() => {
 }
 /* Vertical splitter width */
 .splitpanes--vertical > .splitpanes__splitter {
+  border-color: var(--border-color) !important;
   width: 1px !important;
 }
 /* Horizontal splitter height */
 .splitpanes--horizontal > .splitpanes__splitter {
+  border-color: var(--border-color) !important;
   height: 1px !important;
 }