diff --git a/public/images/Thumbs.db b/public/images/Thumbs.db
index f2be7e9..a026b9f 100644
Binary files a/public/images/Thumbs.db and b/public/images/Thumbs.db differ
diff --git a/public/images/end.png b/public/images/end.png
index 5a50721..5893f66 100644
Binary files a/public/images/end.png and b/public/images/end.png differ
diff --git a/public/images/intro_01.png b/public/images/intro_01.png
index f047a2a..57ca308 100644
Binary files a/public/images/intro_01.png and b/public/images/intro_01.png differ
diff --git a/public/images/intro_02.png b/public/images/intro_02.png
index 565a5fb..b32d1db 100644
Binary files a/public/images/intro_02.png and b/public/images/intro_02.png differ
diff --git a/public/images/intro_03.png b/public/images/intro_03.png
index 278768c..981d50f 100644
Binary files a/public/images/intro_03.png and b/public/images/intro_03.png differ
diff --git a/public/images/intro_04.png b/public/images/intro_04.png
index 5f43eb9..0a51d2f 100644
Binary files a/public/images/intro_04.png and b/public/images/intro_04.png differ
diff --git a/public/images/layerdetails.png b/public/images/layerdetails.png
index 113a8bd..2270e09 100644
Binary files a/public/images/layerdetails.png and b/public/images/layerdetails.png differ