src/Umbraco.Cms.StaticAssets/wwwroot/umbraco/assets/README.md
The files in this directory are static assets that are used by the Umbraco backoffice, installer, public-facing sites, and login screen. These files are served by the Umbraco backend and are not intended to be used by the front-end of your website.
The assets are structured in the following way:
| Name | Description | Usage |
|---|---|---|
login.jpg | The background image for the login screen. | /umbraco/management/api/v1/security/back-office/graphics/login-background |
logo.svg | The Umbraco logo for the Backoffice and other public facing sites. | /umbraco/management/api/v1/security/back-office/graphics/logo |
logo_dark.svg | The Umbraco logo in dark mode for the login screen. | /umbraco/management/api/v1/security/back-office/graphics/login-logo-alternative |
logo_light.svg | The Umbraco logo in light mode for the login screen. | /umbraco/management/api/v1/security/back-office/graphics/login-logo |
All assets are linked up through the BackOfficeGraphicsController which uses the constants defined in ContentSettings.