Gary: Thanks for the feedback.
I was thinking of the 'X' inside the gear and thought that it might have a gold look. Black gear and gold X.
I just haven't tried it yet - to see what it might look like.
I shall do that as soon as I get a chance.

I deliberately didn't make the 'X' thicker.
But, it's only when you get feedback, do you know that others might actually like it better with a thicker X.