Install vencord from here: https://vencord.dev/
Enable the "FakeProfileThemes" plug-in from the "Plugins" tab in the "Vencord" section in settings.
Choose your bot's profile theme in the Profile tab and go down to the "Try Nitro" section and choose the theme you want.
Press "Copy 3y3" and go to Discord Dev Portal.
Select your bot and paste the 3y3 in its "About me".
great tutorial thank you