Hello Congthien, thanks for your reply.
What I am looking for is a piece od CSS code that I could use to make this happen.
I found similar forums where people make the logo invisible when the header is transparent.
I could not figure out on my own how to do this, but basically I would like to point to the white logo when header is transparent, and point to black logo when the header is white.
Do you think that is achievable?
Thank you very much, and have a nice day 🙂