I'm trying to publish an Google Sheets editor add-on I've made and I'm facing some roadblock.
Demo Video for OAuth Authentication
For this, I'm required to create a demo video on how the user logs into the project and requesting the OAuth token with the clientid that I'm working on.
Since the add-on is not publish, does this mean I need to create a test deployment and start the OAuth process?
I found a rough guide like this https://www.youtube.com/watch?v=roxC8SMs7HU and Creating and testing an add-on for Google Sheets in the new Script Editor where we need to modify the appscript.json manifest.
These are the scopes I requested

- Sign-in Branding from google,
Please note, any button that launches Google OAuth must comply with the Google sign-in branding guidelines. Also, the button background can be either blue or white, but the button must always include the standard color Google "G" on a white tile. You may create a separate window pop-up that allows users to click on the Google sign-in button before the android native pop-up shows up.(Please see attached screenshots for reference.)
I do not have a mobile or web app or anything that requires a sign in button, the user should have a google account, and install the addon via the google marketplace. I don't know how should I modify the sign in button.
Hope to get some clarification.