diff --git a/src/main/webapp/static/themes/uibk/_uibk_config.scss b/src/main/webapp/static/themes/uibk/_uibk_config.scss
index 41b204059182661e5b5afca36022683af713f6d4..21347b14f27feb02a3834df793273d856149b012 100644
--- a/src/main/webapp/static/themes/uibk/_uibk_config.scss
+++ b/src/main/webapp/static/themes/uibk/_uibk_config.scss
@@ -16,6 +16,9 @@ CC BY-NC-SA 4.0 by Johann Schirmer
 intro_wb_4.jpg
 CC BY-NC-SA 4.0 by Leopold Walli und Felix Faltner
 
+intro_nightline.jpg
+Background Image: Pixabay License: https://pixabay.com/de/photos/stadt-innsbruck-nachtaufnahme-3403465/ by "Tojota"
+
 */
 
 $link-color				: #1b599c;
diff --git a/src/main/webapp/static/themes/uibk/images/construct-bg.jpg b/src/main/webapp/static/themes/uibk/images/construct-bg.jpg
deleted file mode 100644
index 31af42aaa9c5d34568adc471cfaffb5148254341..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_0.jpg b/src/main/webapp/static/themes/uibk/images/intro_0.jpg
deleted file mode 100644
index e83b5ee0e2661aca3d94d1c997022924a8fd44d9..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_0.jpg b/src/main/webapp/static/themes/uibk/images/intro_0.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..85b8613494ce7a9222735639e88f3d89b051aa7b
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_0.jpg
@@ -0,0 +1 @@
+intro_anniversary_350_years.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_1.jpg b/src/main/webapp/static/themes/uibk/images/intro_1.jpg
deleted file mode 100644
index 24788c3d3e31e01c6ab376f9b5c2207a49a946fb..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_1.jpg b/src/main/webapp/static/themes/uibk/images/intro_1.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..6794a0c6d91e7e53ff826e7ccceeb21a94d7ede0
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_1.jpg
@@ -0,0 +1 @@
+intro_nightline.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_2.jpg b/src/main/webapp/static/themes/uibk/images/intro_2.jpg
deleted file mode 100644
index aa20710bc56df9d78ba9949fdc3e480df87e5df1..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_2.jpg b/src/main/webapp/static/themes/uibk/images/intro_2.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..01bc76a518e71bcb35ed3b77476cc8233f683210
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_2.jpg
@@ -0,0 +1 @@
+intro_wb_2.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_3.jpg b/src/main/webapp/static/themes/uibk/images/intro_3.jpg
deleted file mode 100644
index 890606c0b4d8bcd13e276212d73fe34d713ae9a5..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_3.jpg b/src/main/webapp/static/themes/uibk/images/intro_3.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..0736d62fdbced27bd71e3f359c059a91da448955
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_3.jpg
@@ -0,0 +1 @@
+intro_wb_3.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_4.jpg b/src/main/webapp/static/themes/uibk/images/intro_4.jpg
deleted file mode 100644
index f136e89f673dfab457ed809c97cabe558f1a76df..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_4.jpg b/src/main/webapp/static/themes/uibk/images/intro_4.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..8543ddd95d7c585ca5fc4fadfdba15017e56b695
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_4.jpg
@@ -0,0 +1 @@
+intro_wb_4.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_5.jpg b/src/main/webapp/static/themes/uibk/images/intro_5.jpg
deleted file mode 100644
index e83b5ee0e2661aca3d94d1c997022924a8fd44d9..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_5.jpg b/src/main/webapp/static/themes/uibk/images/intro_5.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..0927f0fe53f5e150a125f94b4be449bafea11897
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_5.jpg
@@ -0,0 +1 @@
+intro_wb_1.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_6.jpg b/src/main/webapp/static/themes/uibk/images/intro_6.jpg
deleted file mode 100644
index 24788c3d3e31e01c6ab376f9b5c2207a49a946fb..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_6.jpg b/src/main/webapp/static/themes/uibk/images/intro_6.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..85b8613494ce7a9222735639e88f3d89b051aa7b
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_6.jpg
@@ -0,0 +1 @@
+intro_anniversary_350_years.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_7.jpg b/src/main/webapp/static/themes/uibk/images/intro_7.jpg
deleted file mode 100644
index aa20710bc56df9d78ba9949fdc3e480df87e5df1..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_7.jpg b/src/main/webapp/static/themes/uibk/images/intro_7.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..6794a0c6d91e7e53ff826e7ccceeb21a94d7ede0
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_7.jpg
@@ -0,0 +1 @@
+intro_nightline.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_8.jpg b/src/main/webapp/static/themes/uibk/images/intro_8.jpg
deleted file mode 100644
index 890606c0b4d8bcd13e276212d73fe34d713ae9a5..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_8.jpg b/src/main/webapp/static/themes/uibk/images/intro_8.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..01bc76a518e71bcb35ed3b77476cc8233f683210
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_8.jpg
@@ -0,0 +1 @@
+intro_wb_2.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_9.jpg b/src/main/webapp/static/themes/uibk/images/intro_9.jpg
deleted file mode 100644
index f136e89f673dfab457ed809c97cabe558f1a76df..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_9.jpg b/src/main/webapp/static/themes/uibk/images/intro_9.jpg
new file mode 120000
index 0000000000000000000000000000000000000000..0736d62fdbced27bd71e3f359c059a91da448955
--- /dev/null
+++ b/src/main/webapp/static/themes/uibk/images/intro_9.jpg
@@ -0,0 +1 @@
+intro_wb_3.jpg
\ No newline at end of file
diff --git a/src/main/webapp/static/themes/uibk/images/intro_anniversary_350_years.jpg b/src/main/webapp/static/themes/uibk/images/intro_anniversary_350_years.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..e83b5ee0e2661aca3d94d1c997022924a8fd44d9
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diff --git a/src/main/webapp/static/themes/uibk/images/intro_nightline.jpg b/src/main/webapp/static/themes/uibk/images/intro_nightline.jpg
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index 0000000000000000000000000000000000000000..9ed56d54e2a9385454fa737b188f9f01632549be
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diff --git a/src/main/webapp/static/themes/uibk/images/laser-bg.jpg b/src/main/webapp/static/themes/uibk/images/laser-bg.jpg
deleted file mode 100644
index 61a11bea7e4cb274399162578ff946f15f5443e2..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/learn-bg.jpg b/src/main/webapp/static/themes/uibk/images/learn-bg.jpg
deleted file mode 100644
index cd67b16388e519fed7c84f88160feff0f28b6311..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/logo_uibk.xcf b/src/main/webapp/static/themes/uibk/images/logo_uibk.xcf
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index 56aa013d50a3659464bdb189a2b6925ad47b3e77..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/romans-bg.jpg b/src/main/webapp/static/themes/uibk/images/romans-bg.jpg
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index 8ceee578a01ea6a11b58510a954012ccf8bef446..0000000000000000000000000000000000000000
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diff --git a/src/main/webapp/static/themes/uibk/images/universitas-bg.jpg b/src/main/webapp/static/themes/uibk/images/universitas-bg.jpg
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index 2c4e9130a93c8e9346c739e6e476f94be1a9cf44..0000000000000000000000000000000000000000
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