It depends on what your goals are: if you want to upload your own logo, define your navigation, categories, products, how many products and blocks to display etc., well these operations are native, that is, are built into Prestashop and our themes (you can use the back office of your PrestaShop Store.)
If you need to modify colors, backgrounds, structure decisively and/or if you need to add more functionalities, you need a basic understanding of HTML and CSS to modify the layout and style of your theme.
If you request a modification which only requires a few lines of code, we will assist you.
If your request is beyond our level of free support, we write to you to let you check our solutions and rates. Anyway if we are busy, we are forced to decline or postpone your request.
Last Updated: 29 Oct 2019