feat: configure Shiki syntax highlighting with warm workbench theme

astro.config.mjs

@@ -1,10 +1,78 @@
 import { defineConfig } from 'astro/config';
 import mdx from '@astrojs/mdx';
 
+const workbenchTheme = {
+  name: 'workbench',
+  type: 'light',
+  colors: {
+    'editor.background': '#EEEAE2',
+    'editor.foreground': '#3D342E',
+  },
+  tokenColors: [
+    {
+      scope: ['comment', 'comment.line', 'comment.block'],
+      settings: { foreground: '#948880', fontStyle: 'italic' },
+    },
+    {
+      scope: ['keyword', 'storage', 'keyword.control'],
+      settings: { foreground: '#A0522D' },
+    },
+    {
+      scope: ['string', 'string.template'],
+      settings: { foreground: '#7D6C2F' },
+    },
+    {
+      scope: ['constant', 'constant.numeric', 'constant.language'],
+      settings: { foreground: '#7D6C2F' },
+    },
+    {
+      scope: ['entity.name.function', 'support.function'],
+      settings: { foreground: '#2B2421', fontStyle: 'bold' },
+    },
+    {
+      scope: ['entity.name.type', 'entity.name.class', 'support.type'],
+      settings: { foreground: '#B07051' },
+    },
+    {
+      scope: ['variable', 'variable.other'],
+      settings: { foreground: '#3D342E' },
+    },
+    {
+      scope: ['punctuation', 'punctuation.definition', 'punctuation.separator'],
+      settings: { foreground: '#6B5F55' },
+    },
+    {
+      scope: ['entity.name.tag'],
+      settings: { foreground: '#A0522D' },
+    },
+    {
+      scope: ['entity.other.attribute-name'],
+      settings: { foreground: '#7D6C2F' },
+    },
+    {
+      scope: ['support.type.property-name', 'meta.object-literal.key'],
+      settings: { foreground: '#2B2421' },
+    },
+    {
+      scope: ['keyword.operator', 'keyword.operator.assignment'],
+      settings: { foreground: '#6B5F55' },
+    },
+    {
+      scope: ['keyword.control.import', 'keyword.control.export'],
+      settings: { foreground: '#A0522D' },
+    },
+  ],
+};
+
 export default defineConfig({
   site: 'https://kenotron.github.io',
   base: '/crashtestdev',
   integrations: [
     mdx(),
   ],
-});
+  markdown: {
+    shikiConfig: {
+      theme: workbenchTheme,
+    },
+  },
+});