Use a simple CSS style sheet.
diff --git a/docs/custom.html b/docs/custom.html
index a5cfdeb..e9beba6 100644
--- a/docs/custom.html
+++ b/docs/custom.html
@@ -2,7 +2,9 @@
 
 <TITLE>Custom Development</TITLE>
 
-<BODY text="#000000" bgcolor="#55bbff" link="#111188">
+<link rel="stylesheet" type="text/css" href="mesa.css"></head>
+
+<BODY>
 
 <H1>Custom Development</H1>