Adjust color window UI & align with FloatWindow changes

Change-Id: I6a402bf29af6edc153e661b28e53166c509823af

svx/uiconfig/ui/colorwindow.ui

 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.16.1 -->
+<!-- Generated with glade 3.18.3 -->
 <interface>
   <requires lib="gtk+" version="3.10"/>
+  <requires lib="LibreOffice" version="1.0"/>
   <object class="GtkWindow" id="palette_popup_window">
     <property name="can_focus">False</property>
+    <property name="hexpand">True</property>
+    <property name="vexpand">True</property>
+    <property name="border_width">6</property>
+    <property name="resizable">False</property>
+    <property name="destroy_with_parent">True</property>
+    <property name="type_hint">popup-menu</property>
+    <property name="skip_pager_hint">True</property>
+    <property name="deletable">False</property>
     <child>
       <object class="GtkBox" id="box1">
         <property name="visible">True</property>
@@ -15,6 +24,7 @@
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
+            <property name="relief">none</property>
           </object>
           <packing>
             <property name="expand">False</property>
@@ -46,6 +56,8 @@
         </child>
         <child>
           <object class="svxlo-SvxColorValueSet" id="colorset">
+            <property name="width_request">200</property>
+            <property name="height_request">150</property>
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
@@ -109,6 +121,7 @@
             <property name="visible">True</property>
             <property name="can_focus">True</property>
             <property name="receives_default">True</property>
+            <property name="relief">none</property>
           </object>
           <packing>
             <property name="expand">False</property>