Enlightening in non-techy terms @moi
Imagine part exchanging your car for a slightly newer model. It costs a bit more than it used to, so @Scott and generous other folk club together to help out. The new car is the same as the other, but you have more functions on the dashboard, the steering wheel feels a bit more comfortable, the gear stick is smoother. The colour is slightly brighter so it feels fresh. You don't know the performance of it until you take it for a fast test drive (normally on a match day).
Dark mode is having the same car but totally black. This one you keep in the g