As discussed, edit the data handling and PDF export.
1. I want the pdf to be designed differently, to look different than the tictactoe.
2. I want the user to choose 9 (3X3), 12 (3X4) or 16 (4X4) stations.
3. The qr codes need to be more far apart from each other (in the distance now, it's hard to scan exactly the one you want...)
4. Change title and instructions section (text change)