.Dd 2025-10-10

.Os dusk

.Nm dack

.Nd configurable wallpaper setter

.Nm

.Op Fl c Ar dack.cfg

.Nm

is a configurable wallpaper setter that can apply a variety of filters

on a wallpaper image during runtime.

As an example the desktop background image could be made black and white

while the source image remains unchanged.

Details on filters can be found in the configuration file.

.Bl -tag -width Ds

.It Fl c, -cfg Ar dack.cfg

This allows for a specific configuration file to be used at runtime.

.br

Note that a plain filename will be considered relative to the ~/.config/dack/

.br

or XDG_CONFIG_HOME equivalent directory, so use full path if the file lives

.br

elsewhere.

.El

.Ex -std

.Nm

can be customized via runtime configuration dack.cfg placed in

~/.config/dack/ or XDG_CONFIG_HOME equivalent.

Optionally a configuration file can be specified using the

DACK_CONFIG_PATH environment variable.

A configuration file passed

as a command line argument will take precedence.