diff --git a/packages/dockview-core/src/theme.scss b/packages/dockview-core/src/theme.scss
index e121f583a..b0b6e8e61 100644
--- a/packages/dockview-core/src/theme.scss
+++ b/packages/dockview-core/src/theme.scss
@@ -293,20 +293,7 @@
     }
 
     .dv-horizontal > .dv-sash-container > .dv-sash {
-      &:not(.disabled) {
-        &::after {
-            content: '';
-            height: 40px;
-            width: 4px;
-            border-radius: 2px;
-            top: 50%;
-            left: 50%;
-            transform: translate(-50%, -50%);
-            background-color: var(--dv-separator-handle-background-color);
-            position: absolute;
-        }
-
-        &:hover {
+        &:not(.disabled) {
             &::after {
                 content: '';
                 height: 40px;
@@ -321,9 +308,25 @@
 
             &:hover {
                 &::after {
+                    content: '';
+                    height: 40px;
+                    width: 4px;
+                    border-radius: 2px;
+                    top: 50%;
+                    left: 50%;
+                    transform: translate(-50%, -50%);
                     background-color: var(
-                        --dv-separator-handle-hover-background-color
+                        --dv-separator-handle-background-color
                     );
+                    position: absolute;
+                }
+
+                &:hover {
+                    &::after {
+                        background-color: var(
+                            --dv-separator-handle-hover-background-color
+                        );
+                    }
                 }
             }
         }
diff --git a/packages/dockview/src/react.ts b/packages/dockview/src/react.ts
index 85e82dbd0..dedde9504 100644
--- a/packages/dockview/src/react.ts
+++ b/packages/dockview/src/react.ts
@@ -3,12 +3,12 @@ import ReactDOM from 'react-dom';
 import {
     DockviewDisposable,
     IFrameworkPart,
-    IDockviewDisposable,
+    DockviewIDisposable,
     Parameters,
 } from 'dockview-core';
 
 export interface ReactPortalStore {
-    addPortal: (portal: React.ReactPortal) => IDockviewDisposable;
+    addPortal: (portal: React.ReactPortal) => DockviewIDisposable;
 }
 
 interface IPanelWrapperProps {
@@ -75,7 +75,7 @@ export class ReactPart<P extends object, C extends object = {}>
     private componentInstance?: IPanelWrapperRef;
     private ref?: {
         portal: React.ReactPortal;
-        disposable: IDockviewDisposable;
+        disposable: DockviewIDisposable;
     };
     private disposed = false;
 
@@ -163,7 +163,7 @@ export class ReactPart<P extends object, C extends object = {}>
 
 type PortalLifecycleHook = () => [
     React.ReactPortal[],
-    (portal: React.ReactPortal) => IDockviewDisposable
+    (portal: React.ReactPortal) => DockviewIDisposable
 ];
 
 /**