Child Theme and Retina

Hello! I’m running Pure&Simple, and I uploaded your child theme, however I get a prompt that states the parent theme is missing… Any ideas about that?

Also, the theme itself looks good on mobile and retina screens, however the logo does not. It looks fine on standard screens, but on the HD screens its soft. I could probably fudge the logo sizing in the stylesheet somewhere to make it a set size and then upload a larger image that WP would downsize, but if I’m going to do that then I’d like for the child theme to be running first.

Thanks!
-Drew

https://www.windingriversyoga.drewwelsh.com