I haven’t created or updated a theme since 2017. Apparently there have been changes as to updating and possibly creating themes too. I tried to upload an updated .jpg in a zip file and I got Your add-on failed validation with 1 error. I’m not sure what I did wrong, can someone please advise me.
Also, I don’t have any Android devices, so I didn’t have that box checked. If I knew what size, I’m sure I could make it for that. Does anyone have a template for that?
Thank you for the assistance!