From f06fc6c685993dc452489e8a2ea2ea92d76de9dd Mon Sep 17 00:00:00 2001
From: Dan Redding <125183946+dangotbanned@users.noreply.github.com>
Date: Thu, 8 Aug 2024 18:36:38 +0100
Subject: [PATCH] docs: Link to *Vega Theme Test* in user guide (#3528)

Resolves 1 item in https://github.com/vega/altair/issues/3519
---
 doc/user_guide/customization.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/user_guide/customization.rst b/doc/user_guide/customization.rst
index 9759669bd..1bd3ff658 100644
--- a/doc/user_guide/customization.rst
+++ b/doc/user_guide/customization.rst
@@ -763,6 +763,8 @@ If you would like to use any theme just for a single chart, you can use the
 Currently Altair does not offer many built-in themes, but we plan to add
 more options in the future.
 
+See `Vega Theme Test`_ for an interactive demo of themes inherited from `Vega Themes`_.
+
 Defining a Custom Theme
 ~~~~~~~~~~~~~~~~~~~~~~~
 The theme registry also allows defining and registering custom themes.
@@ -861,3 +863,4 @@ The configured localization settings persist upon saving.
 
 .. _Vega Themes: https://github.com/vega/vega-themes/
 .. _`D3's localization support`: https://d3-wiki.readthedocs.io/zh-cn/master/Localization/
+.. _Vega Theme Test: https://vega.github.io/vega-themes/?renderer=canvas
\ No newline at end of file