Submenus (MenuItem) are not properly aligned
Hello, As you can see on my screenshot, submenus (MenuItem) are not properly aligned. I don’t know if it’s intentional, but I think it's an issue.

Agreed this is a bug. Based on the spec for Cascading menu child list items should have the first item lined up with the parent item.
@jizc @Keboo
Ok now the alignement is good when menus open downward

But we have to take charge of the fact that menus can open upward

Putting a negative vertical offset correct the alignement when menus open downward but not upward Maybe we should check if the menu opens upward or downward before applying offset
Ah, I didn't think of this. It makes it a lot more complicated. My best guess is that it might be possible to do with a CustomPopupPlacementCallback Delegate.