diff --git a/src/generate/typedoc/options/highlightLanguages.js b/src/generate/typedoc/options/highlightLanguages.js
new file mode 100644
index 00000000..14b5834d
--- /dev/null
+++ b/src/generate/typedoc/options/highlightLanguages.js
@@ -0,0 +1,18 @@
+/**
+ * Adds `svelte` to default highlight languages.
+ *
+ * @type {string[]}
+ */
+export const highlightLanguages = [
+   "bash",
+   "console",
+   "css",
+   "html",
+   "javascript",
+   "json",
+   "jsonc",
+   "json5",
+   "svelte",
+   "tsx",
+   "typescript"
+];
\ No newline at end of file
diff --git a/src/generate/typedoc/options/index.js b/src/generate/typedoc/options/index.js
index ab9941e8..779c5e8d 100644
--- a/src/generate/typedoc/options/index.js
+++ b/src/generate/typedoc/options/index.js
@@ -2,5 +2,6 @@ export * from './entryPoints.js';
 export * from './externalSymbolLinkMappings.js';
 export * from './kindSortOrder.js';
 export * from './groupOrder.js';
+export * from './highlightLanguages.js';
 export * from './navigationLinks.js';
 export * from './searchGroupBoosts.js';
\ No newline at end of file
diff --git a/src/generate/typedoc/typedoc.js b/src/generate/typedoc/typedoc.js
index 5e49c6e2..89efdafe 100644
--- a/src/generate/typedoc/typedoc.js
+++ b/src/generate/typedoc/typedoc.js
@@ -6,6 +6,7 @@ import {
 import {
    entryPoints,
    groupOrder,
+   highlightLanguages,
    kindSortOrder,
    navigationLinks,
    searchGroupBoosts }     from './options/index.js';
@@ -64,6 +65,8 @@ export async function typedoc(logLevel = LogLevel.Verbose)
       // Hide the documentation generator footer.
       hideGenerator: true,
 
+      highlightLanguages,
+
       // Sets log level.
       logLevel,