The user and desktop login screen can be configured here.

Login screen

Setting Description
Title The title of the application that is displayed on the login page.
Message A message that is displayed on the login page.
Browser Title Text that is displayed as the browser title.
Logo Image The logo that is displayed on the login page. Can be set by uploading an image.
Background Image The background image of the login page.
Background Color A color can also be used instead of an image.

Desktop

Setting Description
Color Scheme The color scheme can be set to light or dark.
Highlight Color The highlight color can be set via a color selection dialog.
Background image The background image of the desktop.
Background color A color can also be used instead of an image.
Text style The text style (text under the icon on the desktop) can be set using CSS styles, e.g., font-size:10px.