Default Main Logo Size

I have searched your forum to no end. Our main default header logo is just to small. It looks like a dwarf against all other information and images on the site. Mobile version is also too small. How to enlarge logo without it getting overwritten when upgrading occurs.

So, so many people have asked this question and no replies were informational or good for that matter.

Some help needed please.

Try to disable the HiDPI addon.