CSS4 seems to add some cool features. But my favourite will be the new color declaration. What is yours?

Will it finally support backdrop filters?

@AlexDeLarge I generally agree but actually the new declaration for setting colors is damn cool and easy to implement with a fallback. It let's the RGB value get calculated by the browser depending on the quality of the screen. This ensures that colors look equal on different devices. This is already possible e.g. using media queries... But that's bullshit. Isn't it?

when did css4 happen what did i miss what the fUck