fix: improve styles

.changeset/two-socks-itch.md

@@ -0,0 +1,33 @@
+---
+'@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-core': patch
+'@difizen/libro-jupyter': patch
+'@difizen/libro-kernel': patch
+'@difizen/libro-l10n': patch
+'@difizen/libro-lab': patch
+'@difizen/libro-language-client': 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
+---
+
+fix: improve styles

packages/libro-lab/src/lab-color-registry.ts

@@ -118,7 +118,7 @@ export class LabColorContribution implements ColorContribution {
         id: 'libro.lab.left.tab.background',
         defaults: {
           dark: '#161b21',
-          light: '#f0f2f51f',
+          light: '#fcfcfc',
         },
         description: '',
       },