This is a great tutorial—I just love the interactive parts that really help make things click.
Bringing gradients back, baby!
This is going to be a handy reference to keep on hand whenever you want a button to actually look like a button.
Can an opinionated flat design still have depth and truly be free of drop shadows?
Scott proposes a technique that mimics atmospheric perspective—y’know, when things in the distance look hazier than things in the foreground.
The fact is, we are surrounded by a world that is full of depth, and very little of it is defined by shadow. If we are going to replace drop shadows in our visual UI metaphors, we should look at other options that create depth in the world around us.