scheme: new way of tracking

centralise the colours so all of them are kept here

install/gtk.fish

@@ -5,8 +5,23 @@
 install-deps git adw-gtk-theme
 
 set -l gtk $CONFIG/gtk
+set -l systemd $CONFIG/../systemd/user
 
 confirm-overwrite $gtk
 git clone 'https://github.com/caelestia-dots/gtk.git' $gtk
 
+# Install systemd service
+if test -d $systemd
+    log 'Installing systemd service...'
+
+    echo "[Service]
+Type=oneshot
+ExecStart=$gtk/monitor/update.fish" > $systemd/gtk-monitor-scheme.service
+    cp $gtk/monitor/gtk-monitor-scheme.path $systemd/gtk-monitor-scheme.path
+
+    systemctl --user daemon-reload
+    systemctl --user enable --now gtk-monitor-scheme.path
+    systemctl --user start gtk-monitor-scheme.service
+end
+
 log 'Done.'