I have recently customised Zorin core by installing ArcMenu from Gnome Shell extensions
and noticed it also changes the lock screen and shows open windows:
You can also change the theming of the menu by a selection of its own colour schemes:
A plethora of menu styles (layouts):
Traditional:
Modern:
Touch Menu Layouts:
Simple Menu Layouts:
Launcher Menu Layouts:
Alternative Menu Layouts:
Which is what I am currently using, 'Raven':
