This file explains what each option does and what parameters are valid. In general, an option may accept a string, number, or boolean. Colors are simply strings but written in hex code. They can also include transparency values as seen in this Qt documentation about colors. Don't forget the leading "#"!
BgSource: string. Path to an image, used as the wallpaper. Can be placed in thebackgrounds/folder for convenience.FontFamily: string. Name of the font family. You can find this with something likefontconfig, for example.FontSize: number. This value is used for everything except the date and time.Padding: number. How far away things should be from the edge of your screen.Radius: number. Corner radius for UI. Set to 0 to disable rounded corners.Scale: number. Adjusts the size of UI elements. Can be anything, but I would stick between 1 and 2 (e.g. 1.5).
UserPictureEnabled: boolean. By default the user picture is shown. Set to false if you don't have/want a user picture, or you don't use the user selection functionality.UserBorderWidth: number. Width of the border around your picture. Set to 0 to remove.UserBorderColor: color. Border color around your picture. Useless if border width is 0.UserColor: color. Background color of the default, blank avatar. Only visible if you don't have your own picture.
InputColor: color. Background color of the input fields.InputTextColor: color. Color of text you enter in the fields.InputBorderWidth: number. Width of the border around the active field. Set to 0 to remove.InputBorderColor: color. Border color of active field. Useless if border width is 0.UserPlaceholderText: string. Placeholder text shown when user field is empty.PassPlaceholderText: string. Placeholder text shown when user field is empty.HidePassword: boolean. Whether to replace your entered password with dots.
LoginButtonTextColor: color. Text color on the login button.LoginButtonText: string. Text displayed on the button.LoginButtonColor: color. Background color of the button.
This refers to the popup window that appears when you click on the power/session buttons or the user picture.
PopupColor: color. Background color of popup window.PopupActiveColor: color. Color around the currently selected entry.PopupActiveTextColor: color. Text color of the currently selected entry. Mainly provided for potential contrast issues.
SessionButtonColor: color. Session button background color.SessionIconColor: color. Color of the icon inside the session button.PowerButtonColor: color. Power button background color.PowerIconColor: color. Color of the icon inside the power button.
DateTimeSpacing: number. Spacing between the date and time.Date/TimeColor: color. Date/time text color.Date/TimeSize: number. Font size for the date/time.Date/TimeIsBold: boolean. Whether date/time text should be bolded.Date/TimeOpacity: number. Date/time text opacity.Date/TimeFormat: string. Change the format of how the date and time is displayed. Note that they use different formats.
Happy configuring!