Holds a mapping from the SVG element ids of button tap/touch targets in the example gamepad SVGs
specifically for the dpad buttons, including diagonals which are non-standard buttons,
that can be settup to trigger both the up & left, up & right, down & right etc... buttons
simultaneously when tapped. The value is an array of the indexes of the buttons that should be triggered.
Holds a mapping from the SVG element ids of button tap/touch targets in the example gamepad SVGs specifically for the dpad buttons, including diagonals which are non-standard buttons, that can be settup to trigger both the up & left, up & right, down & right etc... buttons simultaneously when tapped. The value is an array of the indexes of the buttons that should be triggered.