diff --git a/slides/2025-12-19-termin-0-intro.md b/slides/2025-12-19-termin-0-intro.md
index ffa397e..e08ab37 100644
--- a/slides/2025-12-19-termin-0-intro.md
+++ b/slides/2025-12-19-termin-0-intro.md
@@ -20,6 +20,7 @@ h2 {
 <!-- _class: invert -->
 <!-- _header: '' -->
 <!-- _footer: '' -->
+<!-- _backgroundColor: #000 -->
 
 ![bg fit opacity:0.4](./assets/digital-landscape.png)
 
@@ -31,7 +32,7 @@ Hochschule der Medien Stuttgart
 
 **Wintersemester 2025/26**
 
-git.librete.ch/hdm/223015b
+[git.librete.ch/hdm/223015b](https://git.librete.ch/hdm/223015b)
 
 ---