“1. The logo, even though its a PNG-24 file format, seems blurry. Is the native size the scrolled up or scrolled down version?”
The regular/larger version should be the native size. Although you can change that to be larger or smaller if you wanted to. If you want to upload a larger image you can, we’d just need to make some small adjustments to the code.
Also, some users prefer the logo stay the same size (not shrink on scroll), so if you wanted to do that as well just let me know.
“2. How do I center the logo vertically both in desktop and mobile versions?”
The logo is already centered on Mobile Devices since the nav on the right shows up under it when the browser is resized or viewed from a mobile phone.