diff --git a/doc/screenshot/09_operators/0901_and-operator.png b/doc/screenshot/09_operators/0901_and-operator.png
index a939843..c6e7775 100644
Binary files a/doc/screenshot/09_operators/0901_and-operator.png and b/doc/screenshot/09_operators/0901_and-operator.png differ
diff --git a/doc/screenshot/09_operators/0902_or-operator.png b/doc/screenshot/09_operators/0902_or-operator.png
index ff6dafa..fd05ec3 100644
Binary files a/doc/screenshot/09_operators/0902_or-operator.png and b/doc/screenshot/09_operators/0902_or-operator.png differ
diff --git a/doc/screenshot/09_operators/0903_or-operator-without-ok.png b/doc/screenshot/09_operators/0903_or-operator-without-ok.png
index b8097ee..e9fcd4e 100644
Binary files a/doc/screenshot/09_operators/0903_or-operator-without-ok.png and b/doc/screenshot/09_operators/0903_or-operator-without-ok.png differ
diff --git a/doc/screenshot/09_operators/0904_min-operator.png b/doc/screenshot/09_operators/0904_min-operator.png
index 04fa9be..fd05ec3 100644
Binary files a/doc/screenshot/09_operators/0904_min-operator.png and b/doc/screenshot/09_operators/0904_min-operator.png differ