From preferences->Advanced you can assign a color to Voice 1 (it will become the cursor color);
The Alpha Channel seems to be blocked. It does not seem possible to darken it further (it will still tend to gray).
I don't know if the new version behaves differently. The possibility seems to be useful for those with sight problems.
Hypothesis (I don't know if it's feasible):
Break the cursor and be able to better adjust the color