diff --git a/contrib/inactive-windows-transparency.py b/contrib/inactive-windows-transparency.py
index 0cf0dc0b6..6ecf6f9e9 100755
--- a/contrib/inactive-windows-transparency.py
+++ b/contrib/inactive-windows-transparency.py
@@ -1,9 +1,7 @@
 #!/usr/bin/python
 
-# This script requires i3ipc-python package (install it from a system package manager
-# or pip).
-# It makes inactive windows transparent. Use `transparency_val` variable to control
-# transparency strength in range of 0…1 or use the command line argument -o.
+# This script requires i3ipc-python package (install it from a system package manager or pip).
+# Use with --help flag for usage isntructions.
 
 import argparse
 import i3ipc
@@ -11,7 +9,7 @@ import signal
 import sys
 from functools import partial
 
-def on_window_focus(inactive_opacity, ipc, event):
+def on_window_focus(args, ipc, event):
     global prev_focused
 
     focused_workspace = ipc.get_tree().find_focused()
@@ -24,8 +22,8 @@ def on_window_focus(inactive_opacity, ipc, event):
     # on_window_focus not called only when focused is changed,
     # but also when a window is moved
     if focused.id != prev_focused.id:
-        focused.command("opacity 1")
-        prev_focused.command("opacity " + inactive_opacity)
+        focused.command("opacity " + args.active_opacity)
+        prev_focused.command("opacity " + args.inactive_opacity)
         prev_focused = focused
 
 
@@ -41,17 +39,25 @@ def remove_opacity(ipc):
 
 
 if __name__ == "__main__":
-    transparency_val = "0.80"
+    default_inactive_opacity = "0.80"
+    default_active_opacity = "1.0"
 
     parser = argparse.ArgumentParser(
-        description="This script allows you to set the transparency of unfocused windows in sway."
+        description="This script allows you to set the transparency of focused and unfocused windows in sway."
     )
     parser.add_argument(
-        "--opacity",
-        "-o",
+        "--inactive-opacity",
+        "-i",
         type=str,
-        default=transparency_val,
-        help="set opacity value in range 0...1",
+        default=default_inactive_opacity,
+        help="value between 0 and 1 denoting opacity for inactive windows",
+    )
+    parser.add_argument(
+        "--active-opacity",
+        "-a",
+        type=str,
+        default=default_active_opacity,
+        help="value between 0 and 1 denoting opacity for active windows",
     )
     args = parser.parse_args()
 
@@ -62,8 +68,8 @@ if __name__ == "__main__":
         if window.focused:
             prev_focused = window
         else:
-            window.command("opacity " + args.opacity)
+            window.command("opacity " + args.inactive_opacity)
     for sig in [signal.SIGINT, signal.SIGTERM]:
         signal.signal(sig, lambda signal, frame: remove_opacity(ipc))
-    ipc.on("window::focus", partial(on_window_focus, args.opacity))
+    ipc.on("window::focus", partial(on_window_focus, args))
     ipc.main()