diff --git a/modules/thunder_demo/content/file/impressionen_kaminzimmer.jpg b/modules/thunder_demo/content/file/impressionen_kaminzimmer.jpg
index b700cb8c5..c456cb2b5 100644
Binary files a/modules/thunder_demo/content/file/impressionen_kaminzimmer.jpg and b/modules/thunder_demo/content/file/impressionen_kaminzimmer.jpg differ
diff --git a/modules/thunder_demo/content/file/impressionen_kaminzimmer_2.jpg b/modules/thunder_demo/content/file/impressionen_kaminzimmer_2.jpg
index 96eba291e..6507687a8 100644
Binary files a/modules/thunder_demo/content/file/impressionen_kaminzimmer_2.jpg and b/modules/thunder_demo/content/file/impressionen_kaminzimmer_2.jpg differ
diff --git a/modules/thunder_demo/content/file/impressionen_kaminzimmer_3.jpg b/modules/thunder_demo/content/file/impressionen_kaminzimmer_3.jpg
index e55949839..c3dd72b56 100644
Binary files a/modules/thunder_demo/content/file/impressionen_kaminzimmer_3.jpg and b/modules/thunder_demo/content/file/impressionen_kaminzimmer_3.jpg differ
diff --git a/modules/thunder_demo/content/file/impressionen_kaminzimmer_4.jpg b/modules/thunder_demo/content/file/impressionen_kaminzimmer_4.jpg
index c936469ae..23884bf50 100644
Binary files a/modules/thunder_demo/content/file/impressionen_kaminzimmer_4.jpg and b/modules/thunder_demo/content/file/impressionen_kaminzimmer_4.jpg differ
diff --git a/modules/thunder_demo/content/file/leeraufbau_festsaal.jpg b/modules/thunder_demo/content/file/leeraufbau_festsaal.jpg
index 1b6568523..c7ec07112 100644
Binary files a/modules/thunder_demo/content/file/leeraufbau_festsaal.jpg and b/modules/thunder_demo/content/file/leeraufbau_festsaal.jpg differ
diff --git a/modules/thunder_demo/content/file/map_ctis.png b/modules/thunder_demo/content/file/map_ctis.png
index 8a0d55b5c..eac332285 100644
Binary files a/modules/thunder_demo/content/file/map_ctis.png and b/modules/thunder_demo/content/file/map_ctis.png differ
diff --git a/modules/thunder_demo/content/file/thunderday_burda_2017011407.jpg b/modules/thunder_demo/content/file/thunderday_burda_2017011407.jpg
index 31492ebe3..6f8fe80f9 100644
Binary files a/modules/thunder_demo/content/file/thunderday_burda_2017011407.jpg and b/modules/thunder_demo/content/file/thunderday_burda_2017011407.jpg differ
diff --git a/modules/thunder_demo/content/file/thunderteam_on_stage.jpg b/modules/thunder_demo/content/file/thunderteam_on_stage.jpg
index 049ff3073..b531c1f41 100644
Binary files a/modules/thunder_demo/content/file/thunderteam_on_stage.jpg and b/modules/thunder_demo/content/file/thunderteam_on_stage.jpg differ