Is there a way to apply my own theme to all of my forms in the same time?

Ive created a (private) theme and want to bulk apply it to all my forms (100++)

I cant figure out how to do this except manually go trough all our forms.

thanks in advance,

f

Unfortunately, no, it is not possible in any other manner, but to apply the change manually - form by form, but as it is your form theme, you should see it right away (you would not need to search for it).
This will however also allow you to see if some form needs to have some extra styling applied to it to show all of the fields correctly, so that would be the benefit of doing it one by one.