From 04b96fb36c4008e7f39e6c74893d61ac0cd0dcba Mon Sep 17 00:00:00 2001
From: Bryce Kwon <bryce@brycekwon.com>
Date: Wed, 15 Jul 2026 10:43:24 -1000
Subject: Add a light and dark theme toggle

The button is emitted hidden and only revealed by the script, so a
browser without JavaScript never shows a control that cannot work and
the page keeps tracking the system theme.
---
 source/ui-shared.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'source')

diff --git a/source/ui-shared.c b/source/ui-shared.c
index 83454fe..88e5075 100644
--- a/source/ui-shared.c
+++ b/source/ui-shared.c
@@ -1082,6 +1082,9 @@ static void print_header(void)
 		html_txt(ctx.cfg.root_desc);
 		html("</p>\n");
 	}
+
+	html("<button type='button' class='theme-toggle' hidden "
+	     "aria-label='Toggle color theme'></button>\n");
 	html("</header>\n");
 }
 
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