The WP File Download preview theme is a useful features that allows you to show your best file to your users. It displays a preview of the file instead of the file icon, which is especially helpful when presenting documents. Even if the file format doesn't allow for a preview, you can easily choose from one of the many .svg icons available in the icon generator.

If you get on well with Google Drive, these 2 file display themes would be helping your customers. Their display density is comfortable and that's pretty handy to show your custom file icon set and detailed file information.

These 2 themes are a good choice if you have thousands of files and categories. The folder tree theme is narrow and would be helpful if you have a small space to display vertically. On the other hand, the table theme shows all files’ information so it will occupy full your theme width.

The theme per category setup is WP File Download is very flexible. You can either use one theme configured in a different way in each category or use a different theme in each file category.

The other option is to configure a file manager theme that fit your design and force the use all over your website.

In the settings, you can select a theme you get on well with, even your own theme. It will save a lot of time to apply your favorite theme when you create new WP File Download categories.

If you are familiar with CSS styling or even PHP templating, you can make your own download theme. The process is just to clone an existing theme and then you can edit whatever you want in it. That's an override system, meaning that the new theme style remains when you update the plugin.