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Walk the focus over a card's rows. Forward (+y) is up the list.

Arrow keys on a keyboard, the d-pad and the left stick on a controller. It declares no touch class: on a touch screen the rows are the targets themselves, so a finger acts on what it touches rather than on what is lit.

game.screens.Screens feeds this axis to game.vendor.Focus every frame it is active, and feeds the neutral drop frame too, so one push of the stick is one step rather than a run down the whole card.