diff --git a/docs/img/centos.png b/docs/img/centos.png
index fa510d6..e487ac8 100644
Binary files a/docs/img/centos.png and b/docs/img/centos.png differ
diff --git a/mkdocs.yml b/mkdocs.yml
index 5b9fcc7..65a4b1a 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -124,8 +124,8 @@ theme:
     - navigation.top
     - toc.integrate
   palette:
-    primary: indigo
-    accent: deep orange
+    primary: black
+    accent: purple
 
 markdown_extensions:
   - toc: