I know, I know ..., this question has been asked so many times on so many Stack Exchange sites and has been answered that there will be no custom themes anymore.
I've been following this site since it's proposal in 2015, through the final graduation in 2017. In 2019 there was a facelift of all the default-themed sites. I'm not asking asking for a custom theme for Ethereum.
All I want to know is it possible to get a logo and a header? No styling or revamp of the theme required, just some custom artwork. Maybe as a small gift of acknowledgement after running a healthy Stack Exchange site for five years? :-)
Thanks for considering it.