diff --git a/packages/ui-default/components/scratchpad/index.tsx b/packages/ui-default/components/scratchpad/index.tsx
index 33f0460c..842f2b00 100644
--- a/packages/ui-default/components/scratchpad/index.tsx
+++ b/packages/ui-default/components/scratchpad/index.tsx
@@ -13,7 +13,7 @@ import ScratchpadPretest from './ScratchpadPretestContainer';
 import ScratchpadRecords from './ScratchpadRecordsContainer';
 import ScratchpadToolbar from './ScratchpadToolbarContainer';
 
-function buildNestedPane([a, ...panes], mode = 'horizontal') {
+function buildNestedPane([a, ...panes], mode: 'horizontal' | 'vertical' = 'horizontal') {
   const elements = [
     a,
     ...panes.filter((p) => p.props.visible),
diff --git a/packages/ui-default/entry.js b/packages/ui-default/entry.js
index bafbe8f1..c96d9233 100644
--- a/packages/ui-default/entry.js
+++ b/packages/ui-default/entry.js
@@ -1,5 +1,4 @@
 import $ from 'jquery';
-import * as bus from './bus';
 
 window.Hydro = {
   extraPages: [],
@@ -7,7 +6,6 @@ window.Hydro = {
   utils: {},
   node_modules: {},
   version: process.env.VERSION,
-  bus,
 };
 window.externalModules = {};
 window.lazyModuleResolver = {};
diff --git a/packages/ui-default/typed.d.ts b/packages/ui-default/typed.d.ts
new file mode 100644
index 00000000..f47674d7
--- /dev/null
+++ b/packages/ui-default/typed.d.ts
@@ -0,0 +1,5 @@
+declare module '*.svg?react' {
+    import { ComponentType } from 'react'
+    const content: ComponentType
+    export default content
+  }
\ No newline at end of file