For context, im working on a shell script that i can call with hyprland keybinds to change between a number of wallpapers. This is my first substantial script, so I'm pretty new, and I'm working in fish, but I don't see anything in their documentation. I'm also working on a section to push configuration files with color schemes for all my applications so that they change to match. I don't know how to update them at will though. When you manually edit the config files then press save, it automatically updates any instances of currently running applications like foot with the new config without closing them. Is there a way to cause a similar effect with a shell command? Or a way to do this otherwise with python for example, because I could just call it in the script. Sorry if this is poorly worded, I'm having trouble describing exactly what I'm looking for