diff --git a/doc/praesentation/Tech_Client.fodp b/doc/praesentation/Tech_Client.fodp
index 7fccff8..044254d 100644
--- a/doc/praesentation/Tech_Client.fodp
+++ b/doc/praesentation/Tech_Client.fodp
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <office:document xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:presentation="urn:oasis:names:tc:opendocument:xmlns:presentation:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:smil="urn:oasis:names:tc:opendocument:xmlns:smil-compatible:1.0" xmlns:anim="urn:oasis:names:tc:opendocument:xmlns:animation:1.0" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:officeooo="http://openoffice.org/2009/office" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:drawooo="http://openoffice.org/2010/draw" xmlns:calcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.presentation">
- <office:meta><meta:creation-date>2019-06-10T15:26:57.301707798</meta:creation-date><meta:generator>LibreOffice/6.2.3.2$Linux_X86_64 LibreOffice_project/20$Build-2</meta:generator><dc:date>2019-06-18T16:30:36.709014268</dc:date><meta:editing-duration>PT4H43S</meta:editing-duration><meta:editing-cycles>70</meta:editing-cycles><meta:document-statistic meta:object-count="30"/></office:meta>
+ <office:meta><meta:creation-date>2019-06-10T15:26:57.301707798</meta:creation-date><meta:generator>LibreOffice/6.2.4.2.0$Linux_X86_64 LibreOffice_project/20$Build-2</meta:generator><dc:date>2019-06-19T14:31:13.145747269</dc:date><meta:editing-duration>PT4H8M25S</meta:editing-duration><meta:editing-cycles>74</meta:editing-cycles><meta:document-statistic meta:object-count="30"/></office:meta>
  <office:settings>
   <config:config-item-set config:name="ooo:view-settings">
-   <config:config-item config:name="VisibleAreaTop" config:type="int">-1639</config:config-item>
-   <config:config-item config:name="VisibleAreaLeft" config:type="int">-47</config:config-item>
-   <config:config-item config:name="VisibleAreaWidth" config:type="int">14099</config:config-item>
-   <config:config-item config:name="VisibleAreaHeight" config:type="int">9999</config:config-item>
+   <config:config-item config:name="VisibleAreaTop" config:type="int">-169</config:config-item>
+   <config:config-item config:name="VisibleAreaLeft" config:type="int">-1952</config:config-item>
+   <config:config-item config:name="VisibleAreaWidth" config:type="int">31900</config:config-item>
+   <config:config-item config:name="VisibleAreaHeight" config:type="int">16213</config:config-item>
    <config:config-item-map-indexed config:name="Views">
     <config:config-item-map-entry>
      <config:config-item config:name="ViewId" config:type="string">view1</config:config-item>
@@ -35,10 +35,10 @@
      <config:config-item config:name="IsClickChangeRotation" config:type="boolean">true</config:config-item>
      <config:config-item config:name="SlidesPerRow" config:type="short">4</config:config-item>
      <config:config-item config:name="EditMode" config:type="int">0</config:config-item>
-     <config:config-item config:name="VisibleAreaTop" config:type="int">-1865</config:config-item>
-     <config:config-item config:name="VisibleAreaLeft" config:type="int">-412</config:config-item>
-     <config:config-item config:name="VisibleAreaWidth" config:type="int">28888</config:config-item>
-     <config:config-item config:name="VisibleAreaHeight" config:type="int">19519</config:config-item>
+     <config:config-item config:name="VisibleAreaTop" config:type="int">-169</config:config-item>
+     <config:config-item config:name="VisibleAreaLeft" config:type="int">-1952</config:config-item>
+     <config:config-item config:name="VisibleAreaWidth" config:type="int">31901</config:config-item>
+     <config:config-item config:name="VisibleAreaHeight" config:type="int">16214</config:config-item>
      <config:config-item config:name="GridCoarseWidth" config:type="int">2000</config:config-item>
      <config:config-item config:name="GridCoarseHeight" config:type="int">2000</config:config-item>
      <config:config-item config:name="GridFineWidth" config:type="int">200</config:config-item>
@@ -98,9 +98,9 @@
    <config:config-item config:name="ParagraphSummation" config:type="boolean">false</config:config-item>
    <config:config-item config:name="PrintQuality" config:type="int">0</config:config-item>
    <config:config-item config:name="PrinterIndependentLayout" config:type="string">low-resolution</config:config-item>
-   <config:config-item config:name="PrinterName" config:type="string">CUPS-PDF</config:config-item>
+   <config:config-item config:name="PrinterName" config:type="string">Generic Printer</config:config-item>
    <config:config-item config:name="PrinterPaperFromSetup" config:type="boolean">false</config:config-item>
-   <config:config-item config:name="PrinterSetup" config:type="base64Binary">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</config:config-item>
+   <config:config-item config:name="PrinterSetup" config:type="base64Binary">kwH+/0dlbmVyaWMgUHJpbnRlcgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAU0dFTlBSVAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWAAMAtAAAAAAAAAAEAAhSAAAEdAAASm9iRGF0YSAxCnByaW50ZXI9R2VuZXJpYyBQcmludGVyCm9yaWVudGF0aW9uPVBvcnRyYWl0CmNvcGllcz0xCmNvbGxhdGU9ZmFsc2UKbWFyZ2luZGFqdXN0bWVudD0wLDAsMCwwCmNvbG9yZGVwdGg9MjQKcHNsZXZlbD0wCnBkZmRldmljZT0xCmNvbG9yZGV2aWNlPTAKUFBEQ29udGV4RGF0YQpQYWdlU2l6ZTpBNAAAEgBDT01QQVRfRFVQTEVYX01PREUPAER1cGxleE1vZGU6Ok9mZg==</config:config-item>
    <config:config-item config:name="SaveThumbnail" config:type="boolean">true</config:config-item>
    <config:config-item config:name="SaveVersionOnClose" config:type="boolean">false</config:config-item>
    <config:config-item config:name="SlidesPerHandout" config:type="short">6</config:config-item>
@@ -109,7 +109,9 @@
  </office:settings>
  <office:scripts>
   <office:script script:language="ooo:Basic">
-   <ooo:libraries xmlns:ooo="http://openoffice.org/2004/office" xmlns:xlink="http://www.w3.org/1999/xlink"/>
+   <ooo:libraries xmlns:ooo="http://openoffice.org/2004/office" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <ooo:library-embedded ooo:name="Standard"/>
+   </ooo:libraries>
   </office:script>
  </office:scripts>
  <office:font-face-decls>
@@ -570,7 +572,7 @@
    <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" draw:fill="none" draw:fill-color="#ffffff" draw:auto-grow-height="true" draw:auto-grow-width="false" fo:max-height="0cm" fo:min-height="0.849cm"/>
   </style:style>
   <style:style style:name="gr6" style:family="graphic" style:parent-style-name="standard">
-   <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" draw:fill="none" draw:fill-color="#ffffff" draw:auto-grow-height="true" draw:auto-grow-width="false" fo:max-height="0cm" fo:min-height="4.978cm"/>
+   <style:graphic-properties draw:stroke="none" svg:stroke-color="#000000" draw:fill="none" draw:fill-color="#ffffff" draw:auto-grow-height="true" draw:auto-grow-width="false" fo:max-height="0cm" fo:min-height="0cm" fo:padding-top="0cm" fo:padding-bottom="0cm" fo:padding-left="0cm" fo:padding-right="0cm"/>
   </style:style>
   <style:style style:name="gr7" style:family="graphic">
    <style:graphic-properties style:protect="size"/>
@@ -637,9 +639,14 @@
    <style:text-properties fo:color="#000000" style:font-name="Calibri2" fo:font-size="24pt"/>
   </style:style>
   <style:style style:name="P12" style:family="paragraph">
-   <loext:graphic-properties draw:fill="none" draw:fill-color="#ffffff"/>
+   <style:paragraph-properties fo:margin-left="0cm" fo:margin-right="0cm" fo:line-height="150%" fo:text-indent="0cm"/>
+   <style:text-properties style:font-name="Liberation Sans" fo:font-size="18pt" style:letter-kerning="true" style:font-name-asian="Droid Sans Fallback" style:font-size-asian="18pt" style:font-name-complex="Droid Sans Devanagari" style:font-size-complex="18pt"/>
   </style:style>
   <style:style style:name="P13" style:family="paragraph">
+   <loext:graphic-properties draw:fill="none" draw:fill-color="#ffffff"/>
+   <style:paragraph-properties fo:line-height="150%"/>
+  </style:style>
+  <style:style style:name="P14" style:family="paragraph">
    <loext:graphic-properties draw:fill-color="#ffffff"/>
   </style:style>
   <style:style style:name="T1" style:family="text">
@@ -654,6 +661,12 @@
   <style:style style:name="T4" style:family="text">
    <style:text-properties fo:color="#000000" style:font-name="Calibri2" fo:font-size="24pt"/>
   </style:style>
+  <style:style style:name="T5" style:family="text">
+   <style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold"/>
+  </style:style>
+  <style:style style:name="T6" style:family="text">
+   <style:text-properties style:font-name="Liberation Sans" fo:font-size="18pt" style:letter-kerning="true" style:font-name-asian="Droid Sans Fallback" style:font-size-asian="18pt" style:font-name-complex="Droid Sans Devanagari" style:font-size-complex="18pt"/>
+  </style:style>
   <text:list-style style:name="L1">
    <text:list-level-style-bullet text:level="1" text:bullet-char="●">
     <style:list-level-properties text:min-label-width="0.6cm"/>
@@ -771,7 +784,7 @@
    </draw:frame>
    <draw:frame draw:style-name="gr2" draw:text-style-name="P4" draw:layer="backgroundobjects" svg:width="9.113cm" svg:height="1.484cm" svg:x="11.886cm" svg:y="28.215cm" presentation:class="page-number">
     <draw:text-box>
-     <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>&lt;Foliennummer&gt;</text:page-number></text:span></text:p>
+     <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>1</text:page-number></text:span></text:p>
     </draw:text-box>
    </draw:frame>
   </style:handout-master>
@@ -794,7 +807,7 @@
    </draw:frame>
    <draw:frame presentation:style-name="pr1" draw:text-style-name="P4" draw:layer="backgroundobjects" svg:width="6.523cm" svg:height="1.085cm" svg:x="20.076cm" svg:y="14.348cm" presentation:class="page-number">
     <draw:text-box>
-     <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>&lt;Foliennummer&gt;</text:page-number></text:span></text:p>
+     <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>1</text:page-number></text:span></text:p>
     </draw:text-box>
    </draw:frame>
    <presentation:notes style:page-layout-name="PM0">
@@ -819,7 +832,7 @@
     </draw:frame>
     <draw:frame presentation:style-name="pr3" draw:text-style-name="P4" draw:layer="backgroundobjects" svg:width="9.113cm" svg:height="1.484cm" svg:x="11.886cm" svg:y="28.215cm" presentation:class="page-number">
      <draw:text-box>
-      <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>&lt;Foliennummer&gt;</text:page-number></text:span></text:p>
+      <text:p text:style-name="P3"><text:span text:style-name="T1"><text:page-number>1</text:page-number></text:span></text:p>
      </draw:text-box>
     </draw:frame>
    </presentation:notes>
@@ -19876,30 +19889,46 @@
       <text:p><text:span text:style-name="T4">Technologien</text:span></text:p>
      </draw:text-box>
     </draw:frame>
-    <draw:frame draw:style-name="gr6" draw:text-style-name="P12" draw:layer="layout" svg:width="19.8cm" svg:height="5.228cm" svg:x="6cm" svg:y="3.8cm">
+    <draw:frame draw:style-name="gr6" draw:text-style-name="P13" draw:layer="layout" svg:width="26.4cm" svg:height="11.727cm" svg:x="0.8cm" svg:y="1.689cm">
      <draw:text-box>
-      <text:p>Client Kotlin</text:p>
-      <text:p/>
+      <text:p text:style-name="P12"><text:span text:style-name="T5">Client: Kotlin</text:span></text:p>
       <text:list text:style-name="L1">
        <text:list-item>
-        <text:p>Kurz vorgestellt (Interpretersprache, benötigt .Net 2.1.4)</text:p>
+        <text:p text:style-name="P12">Syntax ähnlich wie Java</text:p>
+        <text:list>
+         <text:list-item>
+          <text:p text:style-name="P12">Sprachfeatures die Java nicht bietet (when mit expressions)</text:p>
+         </text:list-item>
+        </text:list>
        </text:list-item>
        <text:list-item>
-        <text:p>Vorteile gegenüber herkömlichen Sprachen (Java, C#, ...)</text:p>
+        <text:p text:style-name="P12">Übersetzt in JVM Bytecode → läuft überall</text:p>
        </text:list-item>
        <text:list-item>
-        <text:p>Wie sieht toolchain aus (IDE, gradle)</text:p>
+        <text:p text:style-name="P12">Native code (LLVM)</text:p>
        </text:list-item>
        <text:list-item>
-        <text:p>Verwendete Libs für das Projekt (tornadofx)</text:p>
-        <text:p/>
+        <text:p text:style-name="P12">Intellij IDEA (IDE), gradle (build tool)</text:p>
+        <text:p text:style-name="P12"/>
+        <text:p text:style-name="P12">Bibliotheken:</text:p>
+       </text:list-item>
+       <text:list-item>
+        <text:p text:style-name="P12">GUI Framework: TornadoFX (JavaFX für Kotlin)</text:p>
+        <text:list>
+         <text:list-item>
+          <text:p text:style-name="P12">Design lässt sich durch css ändern</text:p>
+         </text:list-item>
+        </text:list>
+       </text:list-item>
+       <text:list-item>
+        <text:p text:style-name="P12"><text:span text:style-name="T6">Jfoenix: Material Design GUI Elemente (ChipView, etc.)</text:span></text:p>
        </text:list-item>
       </text:list>
      </draw:text-box>
     </draw:frame>
     <presentation:notes draw:style-name="dp2">
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-     <draw:frame presentation:style-name="pr6" draw:text-style-name="P13" draw:layer="layout" svg:width="16.799cm" svg:height="13.364cm" svg:x="2.1cm" svg:y="14.107cm" presentation:class="notes">
+     <draw:frame presentation:style-name="pr6" draw:text-style-name="P14" draw:layer="layout" svg:width="16.799cm" svg:height="13.364cm" svg:x="2.1cm" svg:y="14.107cm" presentation:class="notes">
       <draw:text-box>
        <text:p>Hervorgehobene genauer anschauen.</text:p>
        <text:p/>