They have reverted some of their more overt specialisation in more recent years and brought back some of the more "classical" elements, like the translucent "lights" etc., alongside new bricks that can be used in many different ways (and some of which I wish I could have had when I was a child). There was a period where everything was pre-made, pre-printed and almost monolithic, with single-purpose blocks, but most of that seems to be gone.

Additionally, their Creator sets actively encourage multi-purpose bricks since the box itself already gives you 3 different models you can build out of the contained bricks, plus the endless possibilities of your inventions.