Open your Tebex dashboard and go to Storefront. The box of your store shows which type it uses.
See Legacy Webstore? You're good to go — Open Editor takes you to the Appearance panel, where you customize your theme. See Webstore Builder? Custom themes can't be installed on that store.
Please note: This is a digital product that only works with the Tebex Legacy Webstore. It can't be installed on stores that use the Webstore Builder. By continuing, you confirm that you have checked your store type.
Not sure which one you have? Ask us on Discord