Does anybody know how to do this?
Or maybe change its color to white. I've searched in this forum and in internet but people doesn't have any solution.
Thank you for your answer.
The listbox backcolor is white by default.
I've tried to change it to the same grey color than the separators and it works but I don't like so much the result.
Thank you Smig.
Your second option is the closest solution I've seen. The only little downside is that when you select a register, you can see the separator in white.