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/ENCODE/newsarch.html src/hg/htdocs/ENCODE/newsarch.html
index 6ba8b7c62f8..3273ae8520f 100755
--- src/hg/htdocs/ENCODE/newsarch.html
+++ src/hg/htdocs/ENCODE/newsarch.html
@@ -1218,31 +1218,31 @@
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeReg">Integrated Regulation from ENCODE</b></a>:
 This collection of tracks displays integrated signal and clustering annotations from multiple cell lines, using ENCODE
 primary data from RNA-seq, ChIP-seq, and DNase-seq assays.  This track is a companion to the hg18 ENCODE Regulation track.
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeOpenChromDnase">
  Open Chromatin by DNaseI HS from ENCODE/OpenChrom(Duke University)</b></a>:
 This track displays DNaseI hypersensitivity evidence as part of the four Open Chromatin track set.
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeSunyAlbanyGeneSt">RNA Binding Protein Associated RNA by RIP-chip GeneST from ENCODE/SUNY Albany</b></a>:
 This track displays transcriptional fragments associated with RNA 
 binding proteins in different cell lines using RIP-Chip (Ribonomic) 
-profiling on Affymetrix GeneChip® Human Gene 1.0 ST Arrays.
+profiling on Affymetrix GeneChip� Human Gene 1.0 ST Arrays.
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeUwDnase">DNaseI Hypersensitivity by Digital DNaseI form ENCODE/University of Washington</b></a>:
 This track shows DNaseI sensitivity measured genome-wide in different 
 cell lines using the Digital DNaseI methodology.
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeBuOrchid">OrChID Predicted DNA Cleavage Sites from ENCODE/Boston Univ (Tullius Lab)</b></a>:
 This track display predicted hydroxyl radical cleavage intensity on naked DNA for each nucleotide in the genome. 
 </p>
 <p>
 <a class="euro" href="http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeSydhHistone">Histone Modifications by ChIP-seq from ENCODE/Stanford/Yale/Davis/Harvard</b></a>:
 This track displays maps of histone modifications genome-wide using ChIP-seq in different cell lines. 
 </p>
 <hr>
@@ -2318,31 +2318,31 @@
 		    <P>
 		    Several new ENCODE data sets have been released in the UCSC
 		    Genome Browser. </P>
 		    <P>
 		    <B>EGASP Full, Partial, and Update: </B> These three 
 		    gene prediction tracks are from the ENCODE Gene Annotation 
 		    Assessment  Project (EGASP) Prediction Workshop 2005. 
 		    The EGASP Full track shows 20 sets of gene predictions 
 		    originally submitted for the workshop, covering all 44 
 		    ENCODE regions.  THE EGASP Partial track shows eight sets of
 		    gene precdictions that were submitted for the workshop, but 		    do not cover all ENCODE regions. The EGASP Update track 
 		    shows updated versions of some of the submitted predictions.
 		    Thanks to Julien Lagarde at IMIM for providing the EGASP 
 		    Full and EGASP Partial data sets.  Thanks to Tyler Alioto of
 		    IMIM (GeneID-U12 and SGP2-U12), Deyou Zheng of Yale (Yale 
-		    Pseudogenes), Sarah Djebali of Ecole Normale Supérieure 
+		    Pseudogenes), Sarah Djebali of Ecole Normale Sup�rieure 
 		    (Exogean), Jonathan Allen of TIGR/Univ. Maryland (Jigsaw) 
 		    and Mario Stanke of the University of Gottingen (Augustus) 
 		    for providing their EGASP Update gene sets.</P>
 		    <P>
 		    <B>RIKEN CAGE Predicted Gene Start Sites: </B> This track 
 		    shows the numbers of 5' cap analysis gene expression (CAGE) 
 		    tags that map to the genome at specific locations. Areas in 
 		    which many tags map to the same region may indicate a 
 		    significant transcription start site. Thanks to Albin 
 		    Sandelin at RIKEN and the FANTOM (Functional Annotation
 		    of Mouse) Consortium for providing these data.</P>
 		    <P>
 		    <B>Stanford RTPCR: </B> This track displays absolute 
 		    transcript copy numbers for 136 genes and 12 negative 
 		    control intergenic regions, determined by real-time PCR in