Please, please, please can you offer an option to increase the size of UI elements? It's not a matter of measuring yourself against other apps' UIs, there is the option for Affinity to be the market leader. You obviously recognise that there is a need for different sizes for the 'Tool UI' so why not for the UI itself? iOS is now leading the field with scalable fonts at a system level so you would be ahead of the pack as it is inevitable that at some stage this will come to the Mac. If I'm using a laptop it makes no difference as I'm sitting maybe 12-14 inches from the screen, but with my 5k iMac I sit about 20-24 inches away from it and this makes a big difference.