XF 2.2 Theme migration

[Tyluur]

I transferred webhosts a few months ago and decided to upgrade my xenforo forum software entirely, since I didn't have many users.
At that time, I exported my website and database and saved it to my machine. Following that, I installed xenforo from a clean installation [which meant that I didn't get to upload my custom theme].

My main question is: How do I import a theme based on the files only in the folder?

Would I have to upload the old forum and export the style, then import it? Or is there a way to import a theme from some file in /styles/ [eg]?

 

[M@rc]

Would I have to upload the old forum and export the style, then import it?

You'll need to do this.

and decided to upgrade my xenforo forum software entirely

You should also mention what version you were on before. An XF 1 theme wouldn't work on XF 2.

 

[Tyluur]

You'll need to do this.

You should also mention what version you were on before. An XF 1 theme wouldn't work on XF 2.

Both were xf2.