diff --git a/.changeset/yellow-ways-leave.md b/.changeset/yellow-ways-leave.md
new file mode 100644
index 00000000..d1b6ba69
--- /dev/null
+++ b/.changeset/yellow-ways-leave.md
@@ -0,0 +1,37 @@
+---
+'@difizen/libro-jupyter': patch
+'@difizen/libro-core': patch
+'@difizen/libro-lab': patch
+'@difizen/libro-docs': patch
+'@difizen/libro-code-cell': patch
+'@difizen/libro-code-editor': patch
+'@difizen/libro-codemirror': patch
+'@difizen/libro-cofine-editor': patch
+'@difizen/libro-cofine-editor-contribution': patch
+'@difizen/libro-cofine-editor-core': patch
+'@difizen/libro-cofine-textmate': patch
+'@difizen/libro-common': patch
+'@difizen/libro-kernel': patch
+'@difizen/libro-l10n': patch
+'@difizen/libro-lsp': patch
+'@difizen/libro-markdown': patch
+'@difizen/libro-markdown-cell': patch
+'@difizen/libro-output': patch
+'@difizen/libro-prompt-cell': patch
+'@difizen/libro-raw-cell': patch
+'@difizen/libro-rendermime': patch
+'@difizen/libro-search': patch
+'@difizen/libro-search-code-cell': patch
+'@difizen/libro-shared-model': patch
+'@difizen/libro-terminal': patch
+'@difizen/libro-toc': patch
+'@difizen/libro-virtualized': patch
+'@difizen/libro-widget': patch
+---
+
+1.libro keybind not work when switching tabs
+2.auto focus when input file name.
+3.editor resize when CodeEditorViewer resize
+4.add file size warning
+5.add UI for file formats not supported for viewing
+6.file name error when select other format
diff --git a/packages/libro-lab/src/editor-viewer/index.less b/packages/libro-lab/src/editor-viewer/index.less
index f19732fb..510dfca5 100644
--- a/packages/libro-lab/src/editor-viewer/index.less
+++ b/packages/libro-lab/src/editor-viewer/index.less
@@ -12,7 +12,7 @@
 
 .libro-lab-default-viewer-text {
   font-size: 18px;
-  color: rgba(0, 0, 0, 85%);
+  color: #000000d8;
   line-height: 26px;
   text-align: center;
   font-weight: 500;
diff --git a/packages/libro-lab/src/index.less b/packages/libro-lab/src/index.less
index 13bc39f9..a74ce2aa 100644
--- a/packages/libro-lab/src/index.less
+++ b/packages/libro-lab/src/index.less
@@ -5,8 +5,8 @@
         background-color: #f0f2f51f;
         min-width: 40px;
         box-shadow:
-          1px 0 0 0 rgba(0, 10, 26, 0.84%),
-          2px 0 0 0 rgba(255, 255, 255, 4.8%);
+          1px 0 0 0 #000a1a02,
+          2px 0 0 0 #ffffff0c;
 
         .mana-tabs-ink-bar {
           display: none;
@@ -40,7 +40,7 @@
           background-color: #000a1a1f;
 
           .mana-tab-icon {
-            color: rgba(0, 0, 0, 35%);
+            color: #00000059;
           }
         }
 
@@ -49,7 +49,7 @@
             background-color: #000a1a1f;
 
             .mana-tab-icon {
-              color: rgba(0, 10, 26, 50%);
+              color: #000a1a7f;
             }
           }
         }
@@ -82,9 +82,9 @@
 
 .default-folder-icon,
 .default-file-icon {
-  color: rgba(0, 0, 0, 45%);
+  color: #00000072;
 }
 
 .mana-tree-node-segment-grow {
-  color: rgba(0, 0, 0, 65%);
+  color: #000000a5;
 }
diff --git a/packages/libro-lab/src/layout/layout-service.ts b/packages/libro-lab/src/layout/layout-service.ts
index d680c634..00208c43 100644
--- a/packages/libro-lab/src/layout/layout-service.ts
+++ b/packages/libro-lab/src/layout/layout-service.ts
@@ -103,9 +103,10 @@ export class LayoutService {
       );
       observable(slotView);
       if (slotView instanceof DefaultSlotView) {
-        slotView.onActiveChange(() => {
+        slotView.onActiveChange(async () => {
           const active = slotView.active;
           if (active instanceof LibroNavigatableView) {
+            await active.ready;
             active.libroView?.focus();
             this.libroService.active = active.libroView;
           } else {