cPanel themes? Does anyone bother?

Hi all, I started my reseller business earlier this year and have around 30 clients. All going well.

Looking to do my branding better and thought about maybe doing the cPanel theme to match better than beyond the company logo.

Does anyone actually do this? Or just a waste of time and money.

And if so, I can’t find any cPanel themes at all out there. Is this purely a custom design job if so.