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.