[education/kstars] doc: Add catalog color to the docs

[Jasem Mutlaq]

Git commit 6c2e034b028fade906c3c55a2a0957486d344a98 by Jasem Mutlaq, on behalf of Valentin Boettcher.
Committed on 31/07/2021 at 17:45.
Pushed by mutlaqja into branch 'master'.

Add catalog color to the docs

A  +-    --    doc/color_editor.png
M  +39   -0    doc/config.docbook
M  +-    --    doc/dso_manager.png

https://invent.kde.org/education/kstars/commit/6c2e034b028fade906c3c55a2a0957486d344a98

diff --git a/doc/color_editor.png b/doc/color_editor.png
new file mode 100644
index 000000000..1d07d2b64
Binary files /dev/null and b/doc/color_editor.png differ
diff --git a/doc/config.docbook b/doc/config.docbook
index 88436aa14..20682164b 100644
--- a/doc/config.docbook
+++ b/doc/config.docbook
@@ -649,6 +649,18 @@ selected catalog (the highlighted row on the left).
 </listitem>
 </varlistentry>
 
+<varlistentry>
+<term><guibutton>Colors</guibutton></term>
+<listitem>
+  <para>Open the catalog color editor (See <xref linkend="catalog_colors"/>.).
+  </para>
+  <para>This will open a dialog which allows you to set the colors in
+  which objects from the selected catalog will be displayed for each
+  color scheme.
+  </para>
+</listitem>
+</varlistentry>
+
 <varlistentry>
 <term><guibutton>More...</guibutton></term>
 <listitem>
@@ -694,6 +706,33 @@ course, change these values at a later point.
 </para>
 </sect2>
 
+<sect2 id="catalog_colors">
+<title>Catalog Color Editor</title>
+<indexterm><primary>Deep-Sky Catalogs</primary>
+  <secondary>Catalog Color Editor</secondary></indexterm>
+
+<screenshot>
+<screeninfo>Catalog color editor</screeninfo>
+<mediaobject>
+  <imageobject>
+    <imagedata fileref="color_editor.png" format="PNG"/>
+  </imageobject>
+  <textobject>
+    <phrase>The catalog color editor.</phrase>
+  </textobject>
+</mediaobject>
+</screenshot>
+<para>
+This dialog reached through the catalog management &GUI; (see
+<xref linkend="catalog_gui"/>). Each button represents the color that
+objects will be drawn in for a specific color scheme. Clicking on a
+button will allow you to choose a color with a color picker. The
+button colors are initialized with the default colors from the catalog
+specification. The color "default" is the color which will be chosen
+for the catalog if there is no color set for a color scheme.
+</para>
+</sect2>
+
 <sect2 id="catalog_details">
 <title>Catalog Details Dialog</title>
 <indexterm><primary>Deep-Sky Catalogs</primary>
diff --git a/doc/dso_manager.png b/doc/dso_manager.png
index 8b71cefee..71c42e1c9 100644
Binary files a/doc/dso_manager.png and b/doc/dso_manager.png differ