diff --git a/screenshot/command.png b/screenshot/command.png
deleted file mode 100644
index 7dc1690..0000000
Binary files a/screenshot/command.png and /dev/null differ
diff --git a/screenshot/login.png b/screenshot/login.png
deleted file mode 100644
index f30bd35..0000000
Binary files a/screenshot/login.png and /dev/null differ
diff --git a/screenshot/screen_text.png b/screenshot/screen_text.png
deleted file mode 100644
index 346d7d1..0000000
Binary files a/screenshot/screen_text.png and /dev/null differ
diff --git a/screenshot/timer.png b/screenshot/timer.png
deleted file mode 100644
index d2272b9..0000000
Binary files a/screenshot/timer.png and /dev/null differ