5709a7858d5c197721be66d5218a79124abadb70
lrnassar
  Tue Mar 17 08:46:31 2026 -0700
Adding alt text to images across static documentation pages, CGI headers, markdown docs, and Pandoc templates. Content images receive AI-generated descriptive alt text; decorative images (icons, spacers, toggles) receive alt="" per WCAG best practice. Also adds Image Descriptions section to the accessibility page, and fixes Pandoc Lua writers to output alt attributes. 67 files, covering help docs, news archive, ENCODE pages, portal pages, and session examples. refs #37254

diff --git src/hg/htdocs/goldenPath/help/genomeEuro.html src/hg/htdocs/goldenPath/help/genomeEuro.html
index 80d89461e0b..ebd2116e55f 100755
--- src/hg/htdocs/goldenPath/help/genomeEuro.html
+++ src/hg/htdocs/goldenPath/help/genomeEuro.html
@@ -22,31 +22,31 @@
 notification at the top of the window that they have been redirected to the more 
 geographically appropriate server. At this point, one of two things can happen:</p> 
 <ol> 
   <li>
   The user may choose to remain on the redirected server and proceed normally.</li> 
   <li>
   The user may click the provided link back to the original server. When this occurs, a cookie is 
   created in the user's Internet browser remembering this choice and in the future, no automatic 
   redirection will occur.</li> 
 </ol> 
 <p> 
 The user may also manually select a server at any time by mousing over the "Mirrors" menu item, 
 illustrated below. Note that manually selecting a server will also create a cookie that will 
 disable automatic redirection. Automatic redirection can be re-enabled by clearing cookies.</p> 
 <p> 
-<img src="../../images/server_selector.jpg"></p> 
+<img alt="Server selection dropdown for choosing between US and European mirror sites" src="../../images/server_selector.jpg"></p> 
 <p>
 Many thanks to our colleagues at the Universit&auml;t Bielefeld Center for Biotechnology for hosting
 genome-euro, and at RIKEN for hosting genome-asia.</p>
 	
 <a name="sessions"></a> 
 <h2>About Saved Sessions and Custom Tracks on Official Mirror Sites</h2> 
 <p> 
 When genome-euro was first activated in 2013, the genome-euro Saved Sessions database was an 
 identical copy of the Saved Sessions database from the U.S. server, so Saved Session data were the 
 same on the two servers, except for custom tracks. After the initial activation of genome-euro, 
 however, the Saved Sessions between the two servers began to diverge.  New Saved Sessions or 
 modifications to existing Saved Sessions are NOT copied from one server to the other, so a new 
 Saved Session created on either server will NOT be available on the other. This is also the case on 
 genome-asia (activated in 2016). Saved Sessions can be moved from one server to the other by saving 
 them to a file and reloading the file using &quot;Save current settings to a local file:&quot; and