Ahh, I see. It was not really obvious for me what to do with the warts at first, but you are right it's fine! Thanks, I edited my comment to exclude that
Yeah I had intially wanted to add a proper tutorial page with images but time ran out much quicker then I expected. Looking forward to going again next month :)
I updated the resolution of the page by default so hopefully these issues should be fixed for future playtesters.