Sixteen reusable section blocks, each with its own signature animation, on one shared dark palette so you judge the motion not the colour. These are components (natural height), not full screens, so each frame is sized to its content. The cursor and drag ones (06, 13, 15) need your mouse; scroll-driven ones (03, 11) want you to scroll inside the frame. This is the pool the builder pulls a non-repeating set from per site and remixes to the brand.