Use conflicting systemd units for color mode

autostart/autostart.target.j2

@@ -30,4 +30,4 @@ Wants=touchpad.service
 Wants=xresources.service
 Wants=yubikey-touch-detector.service
 Wants=kdeconnect.service
-
+Wants=color-theme-dark.service

i3/i3status-rust/config.toml.j2

@@ -75,7 +75,7 @@ command_state = "[[ $($HOME/.i3/scripts/presentation-mode status) == on ]] && ec
 block = "toggle"
 format = "   $icon "
 command_on = "systemctl --user start color-theme-light"
-command_off = "systemctl --user stop color-theme-light"
+command_off = "systemctl --user start color-theme-dark"
 command_state = "[[ $(systemctl --user is-active color-theme-light) == active ]] && echo active"
 
 [[block]]

services/color-theme-dark.service

@@ -0,0 +1,9 @@
+[Unit]
+After=windowmanager.target
+Conflicts=color-theme-light.service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/env switch-color-mode dark
+RemainAfterExit=true
+PassEnvironment=DISPLAY

services/color-theme-light.service

@@ -1,9 +1,9 @@
 [Unit]
 After=windowmanager.target
+Conflicts=color-theme-dark.service
 
 [Service]
 Type=oneshot
 ExecStart=/usr/bin/env switch-color-mode light
-ExecStop=/usr/bin/env switch-color-mode dark
 RemainAfterExit=true
 PassEnvironment=DISPLAY