diff --git a/projekthandbuch/Makefile b/projekthandbuch/Makefile
index f99a688..425f705 100644
--- a/projekthandbuch/Makefile
+++ b/projekthandbuch/Makefile
@@ -45,7 +45,7 @@ clean:  ## Clean LaTeX and output figure files
 	rm -rf general/*.aux
 	rm -f projekthandbuch.tex
 
-distclean: clean
+distclean:
 	rm -f Projekthandbuch_Andreas_Zweili.pdf
 
 pictures/%.pdf: pictures/%.svg  ## Figures for the manuscript
diff --git a/projekthandbuch/pictures/hello_world.png b/projekthandbuch/pictures/hello_world.png
new file mode 100644
index 0000000..79ad13a
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diff --git a/raw_files/hello_world/hello_world_screenshots.xcf b/raw_files/hello_world/hello_world_screenshots.xcf
index 7a02b6d..ffdcd42 100644
Binary files a/raw_files/hello_world/hello_world_screenshots.xcf and b/raw_files/hello_world/hello_world_screenshots.xcf differ
diff --git a/raw_files/hello_world/screenshots/Bildschirmfoto 2018-12-22 um 18.27.53.png b/raw_files/hello_world/screenshots/Bildschirmfoto 2018-12-22 um 18.27.53.png
new file mode 100644
index 0000000..86d1f9d
Binary files /dev/null and b/raw_files/hello_world/screenshots/Bildschirmfoto 2018-12-22 um 18.27.53.png differ
diff --git a/raw_files/hello_world/screenshots/osx.png b/raw_files/hello_world/screenshots/osx.png
new file mode 100644
index 0000000..a2849c5
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