Hi! The author here :) I recommend just using a text logo for starters. With maybe an icon from flaticon. Here's one from Shopify that should be decent https:/

Hi! The author here :) I recommend just using a text logo for starters. With maybe an icon from flaticon. Here's one from Shopify that should be decent https://www.shopify.com/tools/logo-maker https://www.shopify.com/tools/logo-maker