abstract class AppValues { static const double logoHeight = 120; static const double logoWidth = 84; static const double padding = 16; static const double halfPadding = 8; static const double smallPadding = 10; static const double extraSmallPadding = 6; static const double largePadding = 24; static const double extraLargePadding = 32; static const double buttonVerticalPadding = 12; static const double margin = 16; static const double smallMargin = 8; static const double extraSmallMargin = 6; static const double largeMargin = 24; }