website/docs/customize/interfaces/_generalattributes.mdx
settings.navbar.userDisplayConfigure what is shown in the top right corner. Defaults to username. Available options: username, name, email
settings.theme.baseConfigure the base color scheme or toggle between dark and light modes. The default setting is automatic, which adapts based on the user’s browser preference. Available options: automatic, dark, light.
Example:
settings:
theme:
base: dark
settings.theme.backgroundOptional CSS that is applied to the background of the User interface, for example to set a custom background color, gradient, or image.
settings:
theme:
background: >
background: url('https://picsum.photos/1920/1080');
filter: blur(8px);
background-position: center;
background-repeat: no-repeat;
background-size: cover;
settings.localeThe locale which can be configured in the user settings by default. This can be used to preset locales for groups of users, but still let them choose their own preferred locale.