I am trying to install colorlib/sparkling theme on localhost on XAMPP. I am doing this through the WP dashboard Themes->Add New Theme and then selecting Sparkling and Install. Wordpress then takes me to a page that asks me for my FTP credentials. What should these be since I am using localhost?
I resolved this myself. It was surprisingly easy. I simply copied and extracted the zip file into the themes folder under the wordpress installation in htdocs. I was then able to go back into Appearance->Themes and activate the Sparkling theme.
Awesome great to see you got that resolved.
Please advise if you have more questions.
Have a fantastic day!
You can also install WordPress themes using different methods as described on the below page.