diff --git a/docs/.vitepress/theme/index.ts b/docs/.vitepress/theme/index.ts
index d98f645..a5e08d3 100644
--- a/docs/.vitepress/theme/index.ts
+++ b/docs/.vitepress/theme/index.ts
@@ -1,9 +1,17 @@
+import type { Theme } from 'vitepress'
 import DefaultTheme from 'vitepress/theme'
 
 import './vars.css'
 import './overrides.css'
 import 'uno.css'
 
-export default {
-  ...DefaultTheme,
+const config: Theme = {
+  extends: DefaultTheme,
+  enhanceApp({ app }) {
+    app.config.globalProperties.$spec = {
+      version: '2.0',
+    }
+  },
 }
+
+export default config
diff --git a/docs/index.md b/docs/index.md
index 360bdc7..31dde45 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,6 +1,6 @@
 ---
 layout: home
-
+titleTemplate: Token-Oriented Object Notation
 hero:
   name: TOON
   text: Token-Oriented Object Notation
diff --git a/docs/public/favicon.ico b/docs/public/favicon.ico
index 59180c4..f02b984 100644
Binary files a/docs/public/favicon.ico and b/docs/public/favicon.ico differ
diff --git a/docs/public/favicon.svg b/docs/public/favicon.svg
index d3d13d1..29afc2c 100644
--- a/docs/public/favicon.svg
+++ b/docs/public/favicon.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 180 180"><g clip-path="url(#a)"><path fill="#fef3c0" d="M160 20h20v140h-20v20H20v-20H0V20h20V0h140z"/><path fill="#fff" d="M120 40h20v20h-20z"/><path fill="#1b1b1f" d="M160 80h-60V20h60zm-40-20h20V40h-20zM140 100v20h-20v40h-20v-60zm20 60h-20v-40h20z"/><path fill="#fff" d="M40 120h20v20H40z"/><path fill="#1b1b1f" d="M80 160H20v-60h60zm-40-20h20v-20H40zM60 80H40V40H20V20h60v20H60z"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h180v180H0z"/></clipPath></defs></svg>
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 180 180"><g clip-path="url(#a)"><path fill="#fef3c0" d="M0 59.76C0 10.548 10.548 0 59.76 0h60.48C169.452 0 180 10.548 180 59.76v60.48c0 49.212-10.548 59.76-59.76 59.76H59.76C10.548 180 0 169.452 0 120.24z"/><path fill="#fff" d="M120 40h20v20h-20z"/><path fill="#1b1b1f" d="M160 80h-60V20h60zm-40-20h20V40h-20zM140 100v20h-20v40h-20v-60zm20 60h-20v-40h20z"/><path fill="#fff" d="M40 120h20v20H40z"/><path fill="#1b1b1f" d="M80 160H20v-60h60zm-40-20h20v-20H40zM60 80H40V40H20V20h60v20H60z"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h180v180H0z"/></clipPath></defs></svg>
diff --git a/docs/reference/spec.md b/docs/reference/spec.md
index 2638eb2..55721cd 100644
--- a/docs/reference/spec.md
+++ b/docs/reference/spec.md
@@ -9,7 +9,7 @@ You don't need this page to *use* TOON. It's mainly for implementers and contrib
 
 ## Current Version
 
-**Spec v2.0** (2025-11-10) is the current stable version.
+**Spec v{{ $spec.version }}** (2025-11-10) is the current stable version.
 
 ## Guided Tour of the Spec
 
@@ -127,7 +127,7 @@ Validators should verify:
 ## Versioning
 
 The spec uses semantic versioning (major.minor):
-- **Major version** (e.g., v2.0): Breaking changes, incompatible with previous versions
+- **Major version** (e.g., v{{ $spec.version }}): Breaking changes, incompatible with previous versions
 - **Minor version** (e.g., v1.5 → v1.6): Clarifications, additional requirements, or backward-compatible additions
 
 See [Appendix D: Document Changelog](https://github.com/toon-format/spec/blob/main/SPEC.md#appendix-d-document-changelog-informative) for detailed version history.