Design System
The IO color palette is based on Apple's design language.
bg-primary (#fff), bg-secondary (#f5f5f7), text-primary (#1d1d1f), text-secondary (#6e6e73), accent (#0071e3)
bg-dark (#000), bg-dark-secondary (#1d1d1f), text-on-dark (#f5f5f7), text-on-dark-dim (#86868b), accent-on-dark (#2997ff)
success (#28cd41), warning (#ff9f0a), danger (#ff3b30), info (#007aff)
--color-border (rgba black 10%), --color-border-on-dark (rgba white 12%)