[css2-testing] Updated the description of erratum #s.14.2 to say the

bert-github · bert-github · commit a2181b24fd27 · 2017-01-31T17:07:36.000+01:00
background is transparent, not undefined. (The errata text itself
already said that.)
diff --git a/css2-testing/changes.src b/css2-testing/changes.src
@@ -885,10 +885,10 @@ term
     'display: none'. On the other hand, if the element is merely
     invisible ('visibility: hidden'), its background can still be used
     for the canvas. In other words, if the root element has 'display:
-    none', the background of the canvas is undefined. In the case of
+    none', the background of the canvas is transparent. In the case of
     (X)HTML documents, if the root element has 'background:
     transparent' and the &lt;body&gt; element has 'display: none', the
-    background of the canvas is likewise undefined. Change the text in
+    background of the canvas is likewise transparent. Change the text in
     <a href="colors.html#background" >&ldquo;14.2 The
     background&rdquo;</a> as follows:
 
