Defining theme's at dev time and production time

Hi,

I’m developing an app, that, in my dev machine, the app respects the theme i set, but when i posted the files to the production server, it’s not.

What could be missing there?
I even tried to copy all the project files, even the unnecessary like the code files, and nothing.
Also tried a button with the set theme, and it just doesn’t change.

What could i be missing?
I set theme’s like this, which work in my dev machine:

Wisej.Web.Application.LoadTheme(“Vista-2”)