Update light themes (#726)

packages/cli/src/ui/themes/github-dark.ts

@@ -0,0 +1,127 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { darkTheme, Theme } from './theme.js';
+
+export const GitHubDark: Theme = new Theme(
+  'GitHub',
+  'dark',
+  {
+    hljs: {
+      display: 'block',
+      overflowX: 'auto',
+      padding: '0.5em',
+      color: '#d1d5da',
+      background: '#24292e',
+    },
+    'hljs-comment': {
+      color: '#6A737D',
+      fontStyle: 'italic',
+    },
+    'hljs-quote': {
+      color: '#6A737D',
+      fontStyle: 'italic',
+    },
+    'hljs-keyword': {
+      color: '#F97583',
+      fontWeight: 'bold',
+    },
+    'hljs-selector-tag': {
+      color: '#F97583',
+      fontWeight: 'bold',
+    },
+    'hljs-subst': {
+      color: '#e1e4e8',
+    },
+    'hljs-number': {
+      color: '#79B8FF',
+    },
+    'hljs-literal': {
+      color: '#79B8FF',
+    },
+    'hljs-variable': {
+      color: '#FFAB70',
+    },
+    'hljs-template-variable': {
+      color: '#FFAB70',
+    },
+    'hljs-tag .hljs-attr': {
+      color: '#FFAB70',
+    },
+    'hljs-string': {
+      color: '#9ECBFF',
+    },
+    'hljs-doctag': {
+      color: '#9ECBFF',
+    },
+    'hljs-title': {
+      color: '#B392F0',
+      fontWeight: 'bold',
+    },
+    'hljs-section': {
+      color: '#B392F0',
+      fontWeight: 'bold',
+    },
+    'hljs-selector-id': {
+      color: '#B392F0',
+      fontWeight: 'bold',
+    },
+    'hljs-type': {
+      color: '#85E89D',
+      fontWeight: 'bold',
+    },
+    'hljs-class .hljs-title': {
+      color: '#85E89D',
+      fontWeight: 'bold',
+    },
+    'hljs-tag': {
+      color: '#85E89D',
+    },
+    'hljs-name': {
+      color: '#85E89D',
+    },
+    'hljs-attribute': {
+      color: '#79B8FF',
+    },
+    'hljs-regexp': {
+      color: '#DBEDFF',
+    },
+    'hljs-link': {
+      color: '#DBEDFF',
+    },
+    'hljs-symbol': {
+      color: '#990073',
+    },
+    'hljs-bullet': {
+      color: '#990073',
+    },
+    'hljs-built_in': {
+      color: '#79B8FF',
+    },
+    'hljs-builtin-name': {
+      color: '#79B8FF',
+    },
+    'hljs-meta': {
+      color: '#79B8FF',
+      fontWeight: 'bold',
+    },
+    'hljs-deletion': {
+      background: '#86181D',
+      color: '#FDAEB7',
+    },
+    'hljs-addition': {
+      background: '#144620',
+      color: '#85E89D',
+    },
+    'hljs-emphasis': {
+      fontStyle: 'italic',
+    },
+    'hljs-strong': {
+      fontWeight: 'bold',
+    },
+  },
+  darkTheme,
+);