sway workspace border colors

sway/.config/sway/config

@@ -1,5 +1,6 @@
 exec dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=sway
 exec_always autotiling -l 2
+exec_always ~/.config/sway/scripts/workspace-colors.py
 exec_always eww daemon && (eww open bar0 || true) && (eww open bar1 || true)
 exec_always mako
 

sway/.config/sway/scripts/workspace-colors.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+import i3ipc
+import os
+import signal
+
+PID_FILE = '/tmp/workspace-colors.pid'
+
+COLORS = {
+    '1': '#69C3FF',
+    '2': '#FF69C3',
+    '3': '#69FFC3',
+    '4': '#C369FF',
+    '5': '#FFC369',
+}
+
+# Kill any previous instance
+try:
+    old_pid = int(open(PID_FILE).read())
+    os.kill(old_pid, signal.SIGTERM)
+except (OSError, ValueError):
+    pass
+
+with open(PID_FILE, 'w') as f:
+    f.write(str(os.getpid()))
+
+def apply_color(conn, ws_name):
+    color = COLORS.get(ws_name)
+    if color:
+        conn.command(f'client.focused {color} {color} {color} {color} {color}')
+
+def on_workspace_focus(conn, event):
+    apply_color(conn, event.current.name)
+
+conn = i3ipc.Connection()
+
+focused = next((w for w in conn.get_workspaces() if w.focused), None)
+if focused:
+    apply_color(conn, focused.name)
+
+conn.on(i3ipc.Event.WORKSPACE_FOCUS, on_workspace_focus)
+conn.main()