diff --git a/www/command-line-options.html b/www/command-line-options.html
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</span> <a href="../www/command-line-options.html#rotate">&#x2011;rotate</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sample">&#x2011;sample</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sampling-factor">&#x2011;sampling&#x2011;factor</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#scale">&#x2011;scale</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#scene">&#x2011;scene</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#screen">&#x2011;screen</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#seed">&#x2011;seed</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#segment">&#x2011;segment</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#selective-blur">&#x2011;selective&#x2011;blur</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#separate">&#x2011;separate</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sepia-tone">&#x2011;sepia&#x2011;tone</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#set">&#x2011;set</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#shade">&#x2011;shade</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#shadow">&#x2011;shadow</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#shared-memory">&#x2011;shared&#x2011;memory</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sharpen">&#x2011;sharpen</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#shave">&#x2011;shave</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#shear">&#x2011;shear</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sigmoidal-contrast">&#x2011;sigmoidal&#x2011;contrast</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#silent">&#x2011;silent</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#size">&#x2011;size</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sketch">&#x2011;sketch</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#snaps">&#x2011;snaps</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#solarize">&#x2011;solarize</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#sparse-color">&#x2011;sparse&#x2011;color</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#splice">&#x2011;splice</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#spread">&#x2011;spread</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#stegano">&#x2011;stegano</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#stereo">&#x2011;stereo</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#stretch">&#x2011;stretch</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#strip">&#x2011;strip</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#stroke">&#x2011;stroke</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#strokewidth">&#x2011;strokewidth</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#style">&#x2011;style</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#swap">&#x2011;swap</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#swirl">&#x2011;swirl</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#taint">&#x2011;taint</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#text-font">&#x2011;text&#x2011;font</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#texture">&#x2011;texture</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#threshold">&#x2011;threshold</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#thumbnail">&#x2011;thumbnail</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#tile">&#x2011;tile</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#tile-offset">&#x2011;tile&#x2011;offset</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#tint">&#x2011;tint</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#title">&#x2011;title</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#transform">&#x2011;transform</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#transparent">&#x2011;transparent</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#transparent-color">&#x2011;transparent&#x2011;color</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#transpose">&#x2011;transpose</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#transverse">&#x2011;transverse</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#treedepth">&#x2011;treedepth</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#trim">&#x2011;trim</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#type">&#x2011;type</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#undercolor">&#x2011;undercolor</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#unique-colors">&#x2011;unique&#x2011;colors</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#units">&#x2011;units</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#unsharp">&#x2011;unsharp</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#update">&#x2011;update</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#verbose">&#x2011;verbose</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#version">&#x2011;version</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#view">&#x2011;view</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#vignette">&#x2011;vignette</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#virtual-pixel">&#x2011;virtual&#x2011;pixel</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#visual">&#x2011;visual</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#watermark">&#x2011;watermark</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#wave">&#x2011;wave</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#weight">&#x2011;weight</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#white-point">&#x2011;white&#x2011;point</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#white-threshold">&#x2011;white&#x2011;threshold</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#window">&#x2011;window</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#window-group">&#x2011;window&#x2011;group</a> <span class='bull'>&nbsp;&bull; </span> <a href="../www/command-line-options.html#write">&#x2011;write</a>  ] </p>
 
-<p>Below is list of command-line options recognized by the ImageMagick <a href="../www/command-line-tools.html">command-line tools</a>. If you want a description of a particular option, click on the option name in the navigation bar above and you will go right to it. Unless otherwise noted, each option is recognized by the commands
-<a href="../www/convert.html">convert</a>, <a href="../www/mogrify.html">mogrify</a>, and ....  </p>
+<p>Below is list of command-line options recognized by the ImageMagick <a
+href="../www/command-line-tools.html">command-line
+tools</a>. If you want a description of a particular option, click on the
+option name in the navigation bar above and you will go right to it. Unless
+otherwise noted, each option is recognized by the commands <a href="../www/convert.html">convert</a>, <a href="../www/mogrify.html">mogrify</a>, and ....  </p>
 
 <div style="margin: auto;">
   <h4><a name="adaptive-blur" id="adaptive-blur"></a>-adaptive-blur <em class="arg">radius</em>[x<em class="arg">sigma</em>]</h4>
@@ -318,7 +321,8 @@
     <td valign="top">
        Turns '<kbd>On</kbd>' the alpha/matte channel and forces it to be fully
        transparent. This effectively creates a fully transparent image the same
-       size as the original and with all its original RGB data still intact. </td></tr>
+       size as the original and with all its original RGB data still intact,
+       but fully transparent. </td></tr>
 
   <tr valign="top">
     <td valign="top"><kbd>Extract</kbd></td>
@@ -341,24 +345,28 @@
     <td valign="top"><kbd>Shape</kbd></td>
     <td valign="top">
        As per '<kbd>Copy</kbd>' but also colors the resulting shape mask with
-       the current background color.
+       the current background color.  That is the RGB color channels is
+       replaced, with appropriate alpha shape.
        </td></tr>
 
   <tr valign="top">
     <td valign="top"><kbd>Background</kbd></td>
     <td valign="top">
-       Set any fully-transparent pixel to the background color.
+       Set any fully-transparent pixel to the background color, while leaving
+       it fully-transparent.  This can make some image file formats, such as
+       PNG, smaller as the RGB values of transparent pixels are more uniform,
+       and thus can compress better.
        </td></tr>
   </tbody>
 </table>
 
 <p>Note that while the <a href="#matte" >+matte</a> operation is the same as
 "<kbd><a href="#alpha" >-alpha</a> off</kbd>", the <a href="#matte"
->-matte</a> operation is the same as "<kbd><a href="#alpha" >-alpha</a> set</kbd>" and
-not "<kbd><a href="#alpha" >-alpha</a> on</kbd>".
-That is, "<kbd><a href="#alpha" >-alpha</a> set</kbd>" will ensure that the
-written image is opaque if the original image had no transparency
-channel enabled, regardless if transparency data is already present. </p>
+>-matte</a> operation is the same as "<kbd><a href="#alpha" >-alpha</a>
+set</kbd>" and not "<kbd><a href="#alpha" >-alpha</a> on</kbd>".  That is,
+"<kbd><a href="#alpha" >-alpha</a> set</kbd>" will ensure that the written
+image is opaque if the original image had no transparency channel enabled,
+regardless if transparency data is already present. </p>
 
 
 <div style="margin: auto;">
@@ -2824,7 +2832,7 @@
 
 <table style='background-color:#FFFFE0; margin-left:40px; margin-right:40px; width:88%'><tr><td style='width:75%'>implements the forward discrete Fourier transform (DFT).</td><td style='text-align:right;'></td></tr></table>
 
-<p>This option is new as of ImageMagick 6.5.4-3 and transforms an image from the normal (spatial) domain to the frequency domain. In the frequency domain, an image is represented as a superposition of complex sinusoidal waves of varying amplitudes. The image x and y coordinates are the possible frequencies along the x and y directions, respectively, and the pixel intensity values are complex numbers that correspond to the sinusoidal wave amplitudes. See for example, <a href="http://en.wikipedia.org/wiki/Fourier_transform" target="_blank">Fourier Transform</a>, <a href="http://en.wikipedia.org/wiki/DFT" target="_blank">Discrete Fourier Transform</a> and <a href="http://en.wikipedia.org/wiki/FFT" target="_blank">Fast Fourier Transform</a>.</p>
+<p>This option is new as of ImageMagick 6.5.4-3 (and now working for Windows users in ImageMagick 6.6.0-9). It transforms an image from the normal (spatial) domain to the frequency domain. In the frequency domain, an image is represented as a superposition of complex sinusoidal waves of varying amplitudes. The image x and y coordinates are the possible frequencies along the x and y directions, respectively, and the pixel intensity values are complex numbers that correspond to the sinusoidal wave amplitudes. See for example, <a href="http://en.wikipedia.org/wiki/Fourier_transform" target="_blank">Fourier Transform</a>, <a href="http://en.wikipedia.org/wiki/DFT" target="_blank">Discrete Fourier Transform</a> and <a href="http://en.wikipedia.org/wiki/FFT" target="_blank">Fast Fourier Transform</a>.</p>
 
 <p>A single image name is provided as output for this option. However, the output result will have two components. It will be either a two-frame image or two separate images, depending upon whether the image format specified supports multi-frame images. The reason that we get a dual output result is because the frequency domain represents an image using complex numbers, which cannot be visualized directly. Therefore, the complex values are automagically separated into a two-component image representation. The first component is the magnitude of the complex number and the second is the phase of the complex number. See for example, <a href="http://en.wikipedia.org/wiki/Complex_numbers" target="_blank">Complex Numbers</a>.<p>
 
@@ -3393,7 +3401,7 @@
 
 <table style='background-color:#FFFFE0; margin-left:40px; margin-right:40px; width:88%'><tr><td style='width:75%'>implements the inverse discrete Fourier transform (DFT).</td><td style='text-align:right;'></td></tr></table>
 
-<p>This option is new as of ImageMagick 6.5.4-3 and transforms a pair of magnitude and phase images from the frequency domain to a single image in the normal or spatial domain. See for example, <a href="http://en.wikipedia.org/wiki/Fourier_transform" target="_blank">Fourier Transform</a>, <a href="http://en.wikipedia.org/wiki/DFT" target="_blank">Discrete Fourier Transform</a> and <a href="http://en.wikipedia.org/wiki/FFT" target="_blank">Fast Fourier Transform</a>.</p>
+<p>This option is new as of ImageMagick 6.5.4-3 (and now working for Windows users in ImageMagick 6.6.0-9). It transforms a pair of magnitude and phase images from the frequency domain to a single image in the normal or spatial domain. See for example, <a href="http://en.wikipedia.org/wiki/Fourier_transform" target="_blank">Fourier Transform</a>, <a href="http://en.wikipedia.org/wiki/DFT" target="_blank">Discrete Fourier Transform</a> and <a href="http://en.wikipedia.org/wiki/FFT" target="_blank">Fast Fourier Transform</a>.</p>
 
 <p>For example, depending upon the image format used to store the result of the <a href="#fft">-fft</a>, one would use either</p>
 
@@ -4202,25 +4210,36 @@
 
 <table style='background-color:#FFFFE0; margin-left:40px; margin-right:40px; width:88%'><tr><td style='width:75%'>Vary the <em class="arg">brightness</em>, <em class="arg">saturation</em>, and <em class="arg">hue</em> of an image.</td><td style='text-align:right;'></td></tr></table>
 
-<p>The arguments are given as a percentages of variation. A value of 100 means no change, and any
-missing values are taken to mean 100.</p>
+<p>The arguments are given as a percentages of variation. A value of 100 means
+no change, and any missing values are taken to mean 100.</p>
 
-<p>The <em class="arg">brightness</em> is a multiplier of the overall brightness of the image, so 0
-means pure black, 50 is half as bright, 200 is twice as bright. To invert its
-meaning <a href="#negate">-negate</a> the image before and after. </p>
+<p>The <em class="arg">brightness</em> is a multiplier of the overall
+brightness of the image, so 0 means pure black, 50 is half as bright, 200 is
+twice as bright. To invert its meaning <a href="#negate">-negate</a> the image
+before and after. </p>
 
-<p>The <em class="arg">saturation</em> controls the amount of color in an image. For example, 0 produce a grayscale image, while a large value such as 200 produce a very colorful, 'cartoonish' color.</p>
+<p>The <em class="arg">saturation</em> controls the amount of color in an
+image. For example, 0 produce a grayscale image, while a large value such as
+200 produce a very colorful, 'cartoonish' color.</p>
 
-<p>The <em class="arg">hue</em> argument causes a "rotation" of the colors within the image by the amount specified. For example, 50 results in a counter-clockwise rotation of 90, mapping red
-shades to purple, and so on. A value of either 0 or 200 results in a complete
-180 degree rotation of the image. Using a value of 300 is a 360 degree
-rotation resulting in no change to the original image. </p>
+<p>The <em class="arg">hue</em> argument causes a "rotation" of the colors
+within the image by the amount specified. For example, 50 results in
+a counter-clockwise rotation of 90, mapping red shades to purple, and so on.
+A value of either 0 or 200 results in a complete 180 degree rotation of the
+image. Using a value of 300 is a 360 degree rotation resulting in no change to
+the original image. </p>
 
-<p>For example, to increase the color brightness by 20% and decrease the color saturation by 10% and leave the hue unchanged, use <a href="#modulate">-modulate 120,90</a>.</p>
+<p>For example, to increase the color brightness by 20% and decrease the color
+saturation by 10% and leave the hue unchanged, use <a
+href="#modulate">-modulate 120,90</a>.</p>
 
-<p>Use <a href="#set">-set</a> attribute of '<kbd class="arg">option:modulate:colorspace</kbd>' to specify which colorspace to modulate.  Choose from <kbd>HSB</kbd>, <kbd>HSL</kbd> (the default), or <kbd>HWB</kbd>.  For example,</p>
+<p>Use <a href="#set">-set</a> attribute of '<kbd
+class="arg">option:modulate:colorspace</kbd>' to specify which colorspace to
+modulate.  Choose from <kbd>HSB</kbd>, <kbd>HSL</kbd> (the default), or
+<kbd>HWB</kbd>.  For example,</p>
 
 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert image.png -set option:modulate:colorspace hsb -modulate 120,90 modulate.png</span></p>
+
 <div style="margin: auto;">
   <h4><a name="monitor" id="monitor"></a>-monitor</h4>
 </div>
@@ -4407,12 +4426,16 @@
 >-fuzz</a> setting can be used to match and replace colors similar to the one
 given.</p>
 
-<p>The <a href="#transparent" >-transparent</a>  operator is exactly the same
-as <a href="#opaque" >-opaque</a> but makes the matching color transparent,
-rather than the same as the current <a href="#fill">-fill</a> color. </p>
+<p>Use <a href="#opaque">+opaque</a> to paint any pixel that does not match
+the target color. </p>
 
-<p>Use <a href="#opaque">+opaque</a> to paint any pixel that does not match the target color.</p>
-
+<p>The <a href="#transparent">-transparent</a>  operator is exactly the same
+as <a href="#opaque" >-opaque</a> but replaces the matching color with
+transparency rather than the current <a href="#fill">-fill</a> color setting.
+To ensure that it can do this it also ensures that the image has an alpha
+channel enabled, as per "<kbd><a href="#alpha" >-alpha</a> set</kbd>", for
+the new transparent colors, and does not require you to modify the <a
+href="#channel">-channel</a> to enable alpha channel handling. </p>
 
 
 <div style="margin: auto;">
@@ -5460,16 +5483,20 @@
 >-fuzz</a> setting can be used to match and replace colors similar to the one
 given. </p>
 
+<p>Use  <a href="#transparent" >+transparent</a> to invert the pixels matched.
+that is make all non-matching colors transparent. </p>
+
 <p>The <a href="#opaque">-opaque</a>  operator is exactly the same as <a
-href="#transparent" >-transparent</a> but replaces the matching color same as
-the current <a href="#fill">-fill</a> color setting. </p>
+href="#transparent" >-transparent</a> but replaces the matching color with the
+current <a href="#fill">-fill</a> color setting, rather than transparent.
+However the <a href="#transparent" >-transparent</a> operator also ensures
+that the image has an alpha channel enabled, as per "<kbd><a href="#alpha"
+>-alpha</a> set</kbd>", and does not require you to modify the <a
+href="#channel">-channel</a> to enable alpha channel handling. </p>
 
-<p>This does not define the 'transparency color' used for color-mapped image
-formats, such as GIF.  For that use <a href="#transparent-color"
->-transparent-color</a> </p>
-
-<p>Use <a href="#opaque">+opaque</a> to invert the pixels matched, that is
-paint any pixel that does not match the target color, with the fill color.</p>
+<p>Note that this does not define the color as being the 'transparency color'
+used for color-mapped image formats, such as GIF.  For that use <a
+href="#transparent-color" >-transparent-color</a> </p>
 
 
 <div style="margin: auto;">
@@ -5805,7 +5832,7 @@
  <!--    <span id="linkbar-west">&nbsp;</span>  -->
     <span id="linkbar-center">
       <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> &bull;
-    <a href="http://studio.webbyland.com/ImageMagick/MagickStudio/scripts/MagickStudio.cgi">Studio</a>
+    <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a>
     </span>
     <span id="linkbar-east">&nbsp;</span>
   </div>