Magento 2.2.
I have a theme:
/app/design/frontend/Companyname/Newtheme/
I would like to override this PHTML file:
/vendor/magento/module-customer/view/frontend/templates/account/authentication-popup.phtml
What is the correct directory structure in my theme’s folder to put my new file?
I have tried:
/app/design/frontend/Companyname/Newtheme/Magento_Customer/view/frontend/templates/account/authentication-popup.phtml
and
/app/design/frontend/Companyname/Newtheme/Magento_Theme/view/frontend/templates/account/authentication-popup.phtml
and
/app/design/frontend/Companyname/Newtheme/Magento_Theme/templates/account/authentication-popup.phtml
p.s. I know this is a really basic question, I am just not understanding the documentation and many examples online. Not sure why.