Import JSON variables in Theme Builder - what happened?

[Twain]

Good afternoon,
A simple and straightforward way to maintain customized themes  when facing a new release of Telerik for Blazor was to import theme variables from a .json file. This would generate new themes according to our needs, and we could then download and apply the update.
In the current Theme Builder, I cannot find an option to import the .json file; I can only import from Figma. Additionally, importing metadata does not seem to be what I am looking for.
Could you please guide me on how to achieve what I need to do?

Best regards.
Twain

[Twain]

I'm aware that I can manually input the variables one by one, but the idea is to avoid spending time on this process.

[Dimo]

Hi Twain,

The ThemeBuilder has a new version migration mechanism. Please refer to:

• ThemeBuilder page @ Telerik UI for Blazor documentation
• Manual migration of ThemeBuilder themes
• Automatic migration of ThemeBuilder themes

Regards,
Dimo
Progress Telerik

[Twain]

Thanks Dimo for put me up to date with the changes in the theme migration mechanism. 
Regards