41c485c8e4bda02a3de334444479d9ae92140c7c
lrnassar
  Fri Mar 27 16:13:20 2026 -0700
Restore original alt text for images that already had alt attributes. The initial alt text commit incorrectly replaced 44 existing human-written descriptions with AI-generated generic text across 12 files. Feedback from CR. refs #37289

diff --git src/hg/htdocs/inc/hgCollectionHelpInclude.html src/hg/htdocs/inc/hgCollectionHelpInclude.html
index e36078cb5a7..be6eb623f2f 100755
--- src/hg/htdocs/inc/hgCollectionHelpInclude.html
+++ src/hg/htdocs/inc/hgCollectionHelpInclude.html
@@ -117,31 +117,32 @@
   <li>Add &amp; remove tracks</li>
     <ul>
       <li>To add a track to a collection, click the green &quot;plus&quot; 
       <i class="jstree-icon jstree-themeicon fa fa-plus jstree-themeicon-custom"></i> symbol to the 
       left of each track, or right-click (or select multiple, 'command + click', 'shift + click') 
       and <button type="button">Add</button>.</li>
       <li> To remove a track from a collection, click the red &quot;minus&quot; 
       <i class="jstree-icon jstree-themeicon fa fa-minus-square jstree-themeicon-custom"></i> symbol 
       to the left of each track, or right-click and <button type="button">Delete</button>.
       <li>A single track can be added/duplicated multiple times into a single collection.</li>
       <li>A single track can be added to multiple collections, where various comparison views can be 
       applied (see 'Step 4' below).</li>
       <li>Drag and drop to reorder tracks within a collection.</li>
       <li>To add tracks directly from the browser, right click on the track to see options. 
       <p> 
-      <img alt="Right-click context menu showing option to add track to collection" src="../../images/hgCollectionRtClickAddFromBrowser.jpg"></p>
+      <img src="../../images/hgCollectionRtClickAddFromBrowser.jpg"
+      alt="hgCollectionRtClickAddFromBrowser.jpg"></p>
       </ul>
   </ul>
 
 <a name="BrowserOptions"></a>
 <h3>Step 3: Browser viewing options</h3>
 
 <p>
 When viewing collections within the browser, the following viewing options are 
 available:</p>
   <ul>
     <li><strong>Re-order collections within the browser</strong></li>
     <p>
     Drag and drop collections (composite tracks) <i>within the browser</i> to rearrange the order 
     in which they appear in the browser.</p> 
     <li><strong>Sorting by similarity</strong></li>
@@ -157,31 +158,32 @@
     <p>
     To sort by magnitude, right-click the collection in the browser window and select 
     <button type="button">Sort by Magnitude</button>. For the given region visible in the browser 
     window, tracks within the collection will sort in order of magnitude, with the highest in 
     magnitude at the top of the subtracks in the collection where magnitude reflects the
     total number of pixels set when drawing each track.
 </p>
   </ul>
 <p>
 <strong>Tip:</strong> Displaying collection names in the browser:</p>
 
 <div class="row">
 <!-- Left column -->
   <div class="col-md-4" >
   <p> 
-  <img alt="Track Collection Builder showing mouseover tooltip on a collection item" src="../../images/hgCollectionMouseOver.jpg"></p>
+  <img src="../../images/hgCollectionMouseOver.jpg"
+  alt="hgCollection Mouse-over in browser window.jpg"></p>
   </div> <!-- end left column -->
 <!-- Middle column -->
   <br>
   <div class="col-md-4" style="background-color:#eef0f2;">
   <p>
   Once a collection has been created and tracks have been added to it, click 
   <button class="gbButtonGo" type="button">GO</button> (upper right) to view the collection in the 
   browser window. In the browser, mouse-over the gray vertical buttons at the left window frame to 
   see the name of each collection.</p><br>
   </div> <!-- end middle column -->
  <!-- Right column -->
   <div class="col-md-4">
   <p></p>
   </div> <!-- end right column -->
 </div> <!-- end row --><br>
@@ -192,61 +194,64 @@
     <li><strong>Track Color:</strong></li>
     <p>
     Track color for all subtracks in a collection can be set by double-clicking the collection 
     folder in the right window of the Track Collection Builder, which will display a pop-up dialog 
     box. In the pop-up, a color can be set for the subtracks in the collection. Color will be 
     applied as a gradient to subtracks in the collection (e.g., if red is selected, the 
     subtrack graphs will appear in varied shades of red within the browser window).</p>
     <p>
     To revert back to the original track color, change the color picker to '#000000'. To change the 
     track color to black rather than any non-black original color, set the color picker to any shade 
     of black besides '#000000', such as '#000001'. For example, if a track's original color is 
     green, you can change it to red with the color picker. To change this track back to the original 
     color (green), set the color picker to '#000000'. If you instead want to change that track to 
     black, select any shade of black in the color picker, such as '#000001'.</p>
     <p> 
-    <img alt="Track Collection Builder with color editing icon on a folder" src="../../images/hgCollectionClickToEditColor.jpg"></p>
+    <img src="../../images/hgCollectionClickToEditColor.jpg"
+    alt="hgCollection double click folder icon to edit color"></p>
     <p> 
-    <img alt="Color picker dialog for setting track collection display color" src="../../images/hgCollectionSetColor.jpg"></p>
+    <img src="../../images/hgCollectionSetColor.jpg"
+    alt="hgCollection name, description and color pop-up editor"></p>
     <li><strong>Merge methods (aggregate/overlay graphing view options):</strong></li>
 
     <dl>
       <dt>None</dt>
       <dd>Default setting; no overlay/merge is applied. Subtracks appear as individual tracks 
       within the collection/composite.</dd>
       <dt>Transparent</dt>
       <dd>Subtrack graphs are merged together with transparent overlay views.</dd> 
       <dt>Solid</dt>
       <dd>Subtrack graphs are merged together with solid overlay views.</dd> 
       <dt>Stacked</dt>
       <dd>Subtrack graphs are layered horizontally with solid overlay views for each subtrack.</dd> 
       <dt>Add</dt>
       <dd>Subtrack graphs are layered horizontally and merged into one solid overlay color; the 
       silhouette of 'stacked.' For this 'add' view, there is also the option to configure how 
       missing data are treated (see section below). </dd>
       <dt>Subtract</dt>
       <dd>The first (top) subtrack is subtracted from the sum of the others. Note: Re-order 
       collection subtracks in the 'Collected Tracks' pane to change which subtract is at the top. 
       For this 'subtract' view, there is also the option to configure how missing data are treated 
       (see section below).</dd>
     </dl>
     
     <div class="row">
 <!-- Left column -->
       <div class="col-md-4" >
       <p> 
-      <img alt="Merge method dropdown options for combining tracks in a collection" src="../../images/hgCollectionMergeMethod.jpg"></p>
+      <img src="../../images/hgCollectionMergeMethod.jpg"
+      alt="hgCollection drop-down options for Merge Method "></p>
       </div> <!-- end left column -->
 <!-- Middle column -->
       <br>
       <div class="col-md-4" style="background-color:#eef0f2;">
       <p>Tracks in collections can be displayed with 
       <a href="/goldenpath/help/trackDb/trackDbHub.html#multiWig" target="_blank">
       multiWig aggregate/overlay</a> &quot;merge&quot; methods (stacked, transparent, etc.) as well 
       as new add &amp; subtract options.</p><br>
       </div> <!-- end middle column -->
 <!-- Right column -->
       <div class="col-md-4">
       <p></p>
       </div> <!-- end right column -->
     </div> <!-- end row --><br>