Weebly themes can be accessed by logging into your Weebly account and going to the “Themes” tab. Here you will be able to browse through the available themes and preview how they would look on your website. To select a theme, simply click on the “Apply” button.
If you want to further customize your theme, you can do so by clicking on the “Edit” button. This will take you to the Weebly Theme Editor where you can make changes to the CSS or HTML code of your theme.
Once you are happy with your changes, be sure to click on the “Save” button to apply them to your website.