The Zakra theme by ThemeGrill is a popular free theme available in the WordPress.org Themes Directory. This guide will help you make Paid Memberships Pro look better with the Zakra theme.
Creating Compatibility for Zakra and PMPro
Paid Memberships Pro includes a pmpro_element_class filter hook that theme authors and plugin developers can use to dynamically add CSS selectors to frontend pages of Paid Memberships Pro. This recipe will make all frontend tables in PMPro appear just like tables inserted with the Block editor.
The Code Recipe
Adding the Recipe to Your Website
You can add this recipe to your site by creating a custom plugin or using the Code Snippets plugin available for free in the WordPress repository. Read this companion article for step-by-step directions on either method.