Why don't uibuttons have 'normalized' coordinates?

The old, "Guide-type" uicontrol-buttons had the very handy 'Units','Normalized' -property, which allowed you to specify their size in normalized coordinates according to your present screen size. The new uibutton-buttons don't have this property - their size has to be given in pixels. This seems strange and inconvenient to me. Why is this so?

Answer 1

[Vineeth Nair]

UI buttons made using app designer , have their units set to 'Pixels' by default. And it can't be changed. You can refer to this answer, where a workaround is given using " SizeChangedFcn ".