Windows classical parental control Time Boss

Animated pictures for warning before turning off the computer (game).

If you want to add an image as a warning in TB:
Click the picture (right mouse button) Popup menu->Save image as and save the picture to some folder on your computer.
Open Time Boss->Control panel->USER->Miscellaneous panel and select the saved picture in Warning before terminating->Show picture.

Animated pictures examples (GIF)

You can find more GIFs on the internet.
Maybe here: https://giphy.com