This fork of speedwm has .Xresources support thanks to the .Xresources patch. It also has pywal support (tool which grabs colors based on your wallpaper).
Colors can be reloaded on-the-fly using the built in wallpaper utility. In order to implement speedwm reloading support to your own wallpaper utility, run shell command (/bin/sh) 'speedwm_run -r' to reload colors automatically.
Below is a list of all .Xresources values you can define. The .Xresources file should be placed in ~ or ~/.config by the user. However ~/.config/speedwm-de/speedwmrc should be created automatically, which can (and should most of the time) be used instead.