Added the suggestion to let the renderer rotate or mirror the

background with the writing mode, instead of the author doing it.

Author: bert-github

css4-background/Overview.src.html

@@ -44,6 +44,10 @@ <h2 class="no-num no-toc">[LONGSTATUS] [DATE]</h2>
 
 
 
+<!--
+[Will this document use HTML4 or HTML5?]
+[The text below is also in the status section, does it need to be repeated?]
+
 <details class=obsolete open>
   <summary>Not Ready For Implementation</summary>
   <p>
@@ -54,7 +58,7 @@ <h2 class="no-num no-toc">[LONGSTATUS] [DATE]</h2>
     Before attempting to implement this spec,
     please contact the CSSWG at www-style@w3.org.
 </details>
-
+-->
 
 
 <h2 class="no-num no-toc" id="abstract">
@@ -805,6 +809,39 @@ <h3 id="the-background-clip">
   comma-separated background properties to form each background image
   layer.
 
+  <div class=issue>
+  <p>There have been suggestions that automatic adaptation of a
+  background to the writing mode and direction might be useful. I.e.,
+  rather than the author providing several mirrored and rotated
+  versions of the same image, he only provides one image and lets the
+  CSS renderer transform it.
+
+  <p>That could be done, e.g., with a new property
+  ''background-writing-mode'' with as value a set of keywords to
+  describe if and how an image adapts to the current value of
+  'writing-mode' and 'direction'. (As many sets of keywords as there
+  are background layers.) Possible values are:
+
+  <dl>
+  <dt>ltr, rtl, rl-ltr, rl-rtl, lr-ltr, lr-rtl <dd>Indicates the image
+  is designed for, respectively, horizontal left-to-right elements,
+  horizontal right-to-left elements, vertical left-to-right
+  elements...
+
+  <dt>may-rotate <dd>Indicates that the image may be rotated 90
+  degrees if the element's writing mode is diffferent from what the
+  image was designed for.
+
+  <dt>may-mirror <dd>Indicates that the image may be mirrored if the
+  element's direction is different than what the image was designed
+  for.
+
+  <dt>may-position <dd>Indicates that the 'background-position' values
+  can be rotated and/or mirrored if the element's writing-mode and/or
+  direction is different from what the image was designed for.
+  </dl>
+  </div>
+
 <h3 id="the-background-origin">
 The 'background-origin' property</h3>
 
@@ -1715,7 +1752,7 @@ <h2 id="corners">
 Shaped Corners</h2>
 
 <h3 id="the-border-radius">
-The 'border-radius' properties</h2>
+The 'border-radius' properties</h3>
 
   <table class=propdef>
     <tr>