First of all, baratorch, thank you very much for your work! Your effort is a great example of how one capable person can do better than crowds of hired programmers and millions of dollars in investment.

Now, about the problem. The cursor is very small for some reason, and it doesn't scale with everything else.
(Searching for mentions of this problem didn't yield any results, so I'm asking.)

I tried unchecking and rechecking the "system cursor" box, and I didn't mess around with the text tweaker. I'm using the latest version. Can you tell me where to look for a solution?