Colorblock theme blurry logo

[Sam159]

Hi, what is the ideal size and format for a logo in the Colorblock theme? am I meant to change something here to fix the logo?

<img srcset="{{ section.settings.logo | image_url: width: section.settings.logo_width }} 1x, {{ section.settings.logo | image_url: width: image_size_2x }} 2x"
src="{{ section.settings.logo | image_url: width: section.settings.logo_width }}"
loading="lazy"
class="header__heading-logo"
width="{{ section.settings.logo.width }}"
height="{{ section.settings.logo.height }}"
alt="{{ section.settings.logo.alt | default: shop.name | escape }}"
>

[gabenava]

Ive been having trouble simply uploading logo to the header. No matter what I try nothing appears.