Issue #24782: Finish converting the Configure Extension dialog into a new
tab in the IDLE Preferences dialog.  Code patch by Mark Roseman.
diff --git a/Lib/idlelib/help.html b/Lib/idlelib/help.html
index 68f4e0c..9e0eba0 100644
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -266,16 +266,16 @@
 <h3>24.6.1.7. Options menu (Shell and Editor)<a class="headerlink" href="#options-menu-shell-and-editor" title="Permalink to this headline">¶</a></h3>
 <dl class="docutils">
 <dt>Configure IDLE</dt>
-<dd>Open a configuration dialog.  Fonts, indentation, keybindings, and color
-themes may be altered.  Startup Preferences may be set, and additional
-help sources can be specified.  Non-default user setting are saved in a
-.idlerc directory in the user&#8217;s home directory.  Problems caused by bad user
-configuration files are solved by editing or deleting one or more of the
-files in .idlerc.  On OS X, open the configuration dialog by selecting
-Preferences in the application menu.</dd>
-<dt>Configure Extensions</dt>
-<dd>Open a configuration dialog for setting preferences for extensions
-(discussed below).  See note above about the location of user settings.</dd>
+<dd><p class="first">Open a configuration dialog and change preferences for the following:
+fonts, indentation, keybindings, text color themes, startup windows and
+size, additional help sources, and extensions (see below).  On OS X,
+open the configuration dialog by selecting Preferences in the application
+menu.  To use a new built-in color theme (IDLE Dark) with older IDLEs,
+save it as a new custom theme.</p>
+<p class="last">Non-default user settings are saved in a .idlerc directory in the user&#8217;s
+home directory.  Problems caused by bad user configuration files are solved
+by editing or deleting one or more of the files in .idlerc.</p>
+</dd>
 <dt>Code Context (toggle)(Editor Window only)</dt>
 <dd>Open a pane at the top of the edit window which shows the block context
 of the code which has scrolled above the top of the window.</dd>
@@ -699,7 +699,7 @@
     The Python Software Foundation is a non-profit corporation.
     <a href="https://www.python.org/psf/donations/">Please donate.</a>
     <br />
-    Last updated on Oct 02, 2015.
+    Last updated on Oct 13, 2015.
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