on the last page this was revealed: the whole shawl is made with the designer tool Unikatissima has developed: the YouKnits Designer.
Lace blocks are represented by their knitted appearance and they can be combined visually. It’s such an easy tool! You can drag blocks, remove them, replicate.
When you are content with the visual appearance your shawl you ask the tool to print out the pattern and then you can go knit it. From chart ánd written instructions.
You can find the site with the tool here and on Ravelry there are many blocks, both free and for purchase. The Poinsettia was made with 6 free blocks and look how they flow into each other, such a unity! Lovely.
Have a nice x-mas!