Cards

Cards are graphical control elements. They consist of a visual area that contains some of the graphical user interface of the program they belong to. FloatingCards are framed by the Card Decoration. In real life operating systems, Cards are referred to as "windows".

Types
Cards in ACOS have three major types, depending on what controls they provide and how flexible and dynamic they are.

FloatingCard
FloatingCards are Cards that can be manipulated above the Desktop, resized, minimized, maximized and converted into FixedCards.

FixedCard
FixedCards are Cards that cannot be moved, instead, they take up the whole screen apart from the Top Bar and can only be minimized or maximized. Some FixedCards can be converted into FloatingCards.

FullscreenCard
FullscreenCards are similar to FixedCards, but take up the whole screen including the Top Bar.