“Logo manipulation” is perfectly possible, just like all other types of styling, within themes and theme components.
You will just either need to learn the basics of html/css/js and go through the plentitude of documentation on meta to get things done yourself, or you’ll need to look for someone you can hire to make your desired changes.
The latter can be done in the marketplace category.
As your original question has been answered, I think we can end this topic now.
I wish you the best of success with your forum.