First of all thank you very much for your interest in the premium version of the theme.
Once you upgrade to the pro version of the theme then the CSS that you have added to the theme file of the free version won’t be available in the pro version.
The post, pages, categories that you have created from the backend will be available which you can use to set up the pro version but the modification/ customization that you have done in your free theme will not be available in the pro version.
Other than that pro version comes with lots of other exciting feature that you may want to consider and to know about them please refer to below-given link :
The customizations made directly to the theme is never recommended as they are lost upon theme updates/upgrades.
As of now, you can still take the backup of your current customization files and migrate the customization changes after upgrading to the pro theme manually.
If you require further assistance on the migration/customizations to upgrade to pro, you can also choose to hire a professional customizer for the task. To hire a customizer, please go to the link here :
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