Mark images as not translatable to keep them off translators radar

help/C/highlighting.page

 <page xmlns="http://projectmallard.org/1.0/"
+      xmlns:its="http://www.w3.org/2005/11/its"
 	type="topic" style="task"
 	id="highlighting">
 
@@ -22,7 +23,7 @@
 
 <figure>
   <desc><app>Sudoku</app> with highlighting.</desc>
-  <media type="image" mime="image/png" src="figures/rowcolumnbox.png" width="400" ></media>
+  <media type="image" mime="image/png" src="figures/rowcolumnbox.png" width="400" its:translate="no" ></media>
 </figure>
 
 

help/C/index.page

 <page xmlns="http://projectmallard.org/1.0/"
+      xmlns:its="http://www.w3.org/2005/11/its"
 	type="guide" style="task"
 	id="index">
   <info>
-    <title type='link' role="trail"><media type="image" src="figures/logo.png" /></title>
+    <title type='link' role="trail"><media type="image" src="figures/logo.png" its:translate="no"/></title>
     <title type='link'>GNOME Sudoku</title>
     <title type='text'>GNOME Sudoku</title>
     <revision pkgversion="3.4" version="0.1" date="2012-03-08" status="final"/>
@@ -15,7 +16,7 @@
       <p>Creative Commons Share Alike 3.0</p>
     </license>
   </info>
-<title><media type="image" src="figures/logo32.png">GNOME Sudoku logo</media> GNOME Sudoku</title>
+<title><media type="image" src="figures/logo32.png" its:translate="no"><span its:translate="yes">GNOME Sudoku logo</span></media> GNOME Sudoku</title>
 
   <p>Gnome Sudoku is based on the popular number-based logic puzzle in which one must fill a 9 X 9 square with the correct digits. The unique puzzles can be played on screen or <link xref="index#print">printed</link> to take along. All games persist across sessions and you can <link xref="save-resume#resume">resume</link> any old game at any time, as well as replay any game you've already won.
 </p>

help/C/rules.page

 <page xmlns="http://projectmallard.org/1.0/"
+      xmlns:its="http://www.w3.org/2005/11/its"
 	type="topic" style="task"
 	id="rules">
 
@@ -27,6 +28,6 @@ Each puzzle has only one solution.</p>
 
 <figure>
   <desc>Outline of a row, a column and a 3x3 box using highlighting option.</desc>
-  <media type="image" mime="image/png" src="figures/rowcolumnbox.png" width="400" ></media>
+  <media type="image" mime="image/png" src="figures/rowcolumnbox.png" width="400" its:translate="no"></media>
 </figure>
 </page>

help/C/strategy.page

 <page xmlns="http://projectmallard.org/1.0/"
+      xmlns:its="http://www.w3.org/2005/11/its"
 	type="topic" style="task"
 	id="strategy">
 	<info>
@@ -37,7 +38,7 @@
             <note><p>This strategy will help reveal the cells which have only one possible choice. When revealed, you can fill those cells in with that choice, and repeat the strategy again until the entire puzzle is solved.</p></note>
 <figure>
   <desc>Example use of strategy 1.</desc>
-  <media type="image" mime="image/png" src="figures/strategy1.png" width="400" ></media>
+  <media type="image" mime="image/png" src="figures/strategy1.png" width="400" its:translate="no"></media>
 </figure>
 
 </section>
@@ -54,7 +55,7 @@
             <note><p>This strategy will help reveal the cells which have only one possible choice. When revealed, you can fill those cells in with that choice, and repeat the strategy again until the entire puzzle is solved.</p></note>
 <figure>
   <desc>Example use of strategy2.</desc>
-  <media type="image" mime="image/png" src="figures/strategy2.png" width="400" ></media>
+  <media type="image" mime="image/png" src="figures/strategy2.png" width="400" its:translate="no"></media>
 </figure>
 
 	   <note><p>If neither of the above strategies solves the puzzle on its own, you can alternate strategies. You can also combine the strategies.</p></note>

help/C/trackers.page

 <page xmlns="http://projectmallard.org/1.0/"
+      xmlns:its="http://www.w3.org/2005/11/its"
 	type="topic" style="task"
 	id="trackers">
 
@@ -55,8 +56,8 @@ Trackers can be used to keep track of trial-and-error solutions. Tracked moves a
  <section id="demo">
   <title>Video Demonstration</title>
 
-  <media type="video" width="650" mime="application/ogg" src="figures/trackers.webm">
- <tt:tt xmlns:tt="http://www.w3.org/ns/ttml">
+  <media type="video" width="650" mime="application/ogg" src="figures/trackers.webm" its:translate="no">
+ <tt:tt its:translate="yes" xmlns:tt="http://www.w3.org/ns/ttml">
         <tt:body>
           <tt:div begin="1s" end="5s">
             <tt:p>