Spectra One is a free WordPress theme. Therefore, it can be installed and used like any other.
To install it on your site kindly follow the steps-
- Login to your WordPress Dashboard.
- Go to Appearance > Themes > Add New
- Search for – Spectra One
- Install Spectra One
- Activate it
Note: If you want to install the Spectra One theme manually you’ll need the zip file of the Spectra One theme. You can download it from the WordPress Repository here. For more details on how to install the Spectra One theme using the zip file check this article.