Customizing your online store with your brand's logo is simple.
1. Start by going to your 'Shop Design' section in your store's back office.
2. Click to edit your theme settings.
3. Choose to upload a logo from the left hand logos panel.
4. Select the image file you wish to upload
6. Save theme
Transparent PNGs will give you the best results so try to save your logo file in .PNG format. This will give you the option of changing the header colour of your store without having to re-upload another logo whose background matches that of your store's.
Try uploading different logo variations to see how they look. You can upload up to four and switch to preview between them.