[gimp-help] Fix issues #64, #135

[Julien Hardlin <jhardlin src gnome org>]

commit 9a9ffcd1b84f78509b5be51e5638859e35527be6
Author: Julien Hardelin <jhardlin orange fr>
Date:   Sat Nov 9 15:58:13 2019 +0100

    Fix issues #64, #135

 images/C/using/export-png-dialog.png  | Bin 14192 -> 40956 bytes
 images/C/using/export-tiff-dialog.png | Bin 12028 -> 31304 bytes
 quickreference/gimp-keys.xml          |   2 +-
 src/concepts/layer-modes.xml          |  18 +++++++++--------
 src/using/fileformats.xml             |  36 ++++++++++++++++++++++++++++++++--
 5 files changed, 45 insertions(+), 11 deletions(-)
---
diff --git a/images/C/using/export-png-dialog.png b/images/C/using/export-png-dialog.png
index fdd941112..df0e2ab70 100644
Binary files a/images/C/using/export-png-dialog.png and b/images/C/using/export-png-dialog.png differ
diff --git a/images/C/using/export-tiff-dialog.png b/images/C/using/export-tiff-dialog.png
index 4757a864c..c70b1dcb5 100644
Binary files a/images/C/using/export-tiff-dialog.png and b/images/C/using/export-tiff-dialog.png differ
diff --git a/quickreference/gimp-keys.xml b/quickreference/gimp-keys.xml
index 4ffdd5535..1b7bbfce6 100644
--- a/quickreference/gimp-keys.xml
+++ b/quickreference/gimp-keys.xml
@@ -62,7 +62,7 @@
         </keys>
         <keys>
           <key><shift/><ctrl/>E</key>
-          <action>Export As...: save image to various file formats</action>
+          <action>Export As...: export image to various file formats</action>
         </keys>
         <keys>
           <key><ctrl/>P</key><action>Print...</action>
diff --git a/src/concepts/layer-modes.xml b/src/concepts/layer-modes.xml
index 22f51e9af..48959337a 100644
--- a/src/concepts/layer-modes.xml
+++ b/src/concepts/layer-modes.xml
@@ -2,14 +2,7 @@
 <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
                        "http://www.docbook.org/xml/4.3/docbookx.dtd";>
 <!--Section History
-  2009-02-21 j.h: revised for v2.6
-  2008-04-06 Mr.Dust : reviewed and added 'ko'
-  2008-01-05 jpl: added example to 'dissolve'
-  2007-09-23 AntI: Added 'es'
   2007-07-14 bug fixed in Color Erase
-  2007-04-29 Dust : added "ko"
-  2007-02-15 ciampix: added "it"
-  2007-02-13 KoSt: added 'no'
   2007-01-19 lexA: moved en over from the glossary
   2007-01-13 lexA: relocated from the layer dialog and added
                    examples and equations
@@ -60,7 +53,16 @@
     <quote>Saturation</quote>, the underlying visible layers will appear in
     shades of gray.
   </para>
-
+  
+  <note>
+    <para>
+      Prior to blending, images have gamma correction removed and are converted 
+      from sRGB to linear. After blending, they are converted back from linear to 
+      sRGB. However, before converting back to sRGB, opacity is applied.
+        <!-- issue #135-->
+    </para>
+  </note>
+  
   <figure>
     <title>Images (masks) for layer mode examples</title>
     <mediaobject>
diff --git a/src/using/fileformats.xml b/src/using/fileformats.xml
index 95af6e176..763dfd949 100644
--- a/src/using/fileformats.xml
+++ b/src/using/fileformats.xml
@@ -372,11 +372,11 @@
           </listitem>
         </varlistentry>
         <varlistentry>
-          <term>Save metadata</term>
+          <term>Keep metadata</term>
           <listitem>
             <para>
               If the image you loaded has Exif, XMP, IPTC metadata, they are 
-              preserved, and you can save them or not when exporting to jpeg.
+              preserved, and you can keep them or not when exporting to JPEG.
             </para>
           </listitem>
         </varlistentry>
@@ -687,6 +687,12 @@
             </para>
           </listitem>
         </varlistentry>
+        <varlistentry>
+          <term>Pixelformat</term>
+          <listitem>
+            <para>TODO</para>
+          </listitem>
+        </varlistentry>
         <varlistentry>
           <term>Compression level</term>
           <listitem>
@@ -699,6 +705,15 @@
             </para>
           </listitem>
         </varlistentry>
+        <varlistentry>
+          <term>Keep metadata</term>
+          <listitem>
+            <para>
+              If the image you loaded has Exif, XMP, IPTC metadata, they are 
+              preserved, and you can keep them or not when exporting to PNG.
+            </para>
+          </listitem>
+        </varlistentry>
         <varlistentry>
           <term>Save Defaults</term>
           <listitem>
@@ -830,6 +845,14 @@
             </itemizedlist>
           </listitem>
         </varlistentry>
+        <varlistentry>
+          <term>Save layers</term>
+          <listitem>
+            <para>
+              Since GIMP-2.10.12, you can save layers when exporting to TIFF.
+            </para>
+          </listitem>
+        </varlistentry>
         <varlistentry>
           <term>Save color values from transparent pixels</term>
           <listitem>
@@ -848,6 +871,15 @@
             </para>
           </listitem>
         </varlistentry>
+        <varlistentry>
+          <term>Keep metadata</term>
+          <listitem>
+            <para>
+              If the image you loaded has Exif, XMP, IPTC metadata, they are 
+              preserved, and you can keep them or not when exporting to TIFF.
+            </para>
+          </listitem>
+        </varlistentry>
       </variablelist>
     </sect3>