diff --git a/doc/Concept.md b/doc/Concept.md
index 1669c1b90..5dff765df 100644
--- a/doc/Concept.md
+++ b/doc/Concept.md
@@ -9,7 +9,7 @@ Messages from the incoming node get forwarded to the outgoing node.
 For bidirectional communication a corresponding path in the reverse direction must be added.
 
 The server is designed to allow multiple outgoing nodes as an extension.
-This has **not** been implemented at the moment!
+@todo This has **not** been implemented at the moment!
 
 \diafile path_simple.dia
 
diff --git a/doc/pictures/eonerc_logo.png b/doc/pictures/eonerc_logo.png
index 243c5a45f..81c3ad0ca 100644
Binary files a/doc/pictures/eonerc_logo.png and b/doc/pictures/eonerc_logo.png differ