Thank you toastergrl for the enlightening reply.
It's not that I didn't try to find the right place for my question but obviously not well enough.
However, the post is now outdated anyway, since I have already submitted my design. The Ideas team didn't complain about the logo in the description, but I encountered another problem. But that is another topic.
If I would advertise my project here I think I have found the right place. However, this one seems to be quite inactive (last post almost a month old) and if it is not good manners to post his project here itself, I will also just skip idea.