diff --git a/README.md b/README.md
index 59b7dd6..6f5557c 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,4 @@
 - Fix kitty bell disable not working
 - Add Gruvbox switching support
   - kitty theme is "Gruvbox Dark", [see the full list](https://github.com/kovidgoyal/kitty-themes/blob/master/themes.json).
+- Somehow remove redundant color definitions in [`hosts/elnupad/polybar.nix`](hosts/elnupad/polybar.nix)
diff --git a/hosts/elnupad/polybar.nix b/hosts/elnupad/polybar.nix
index 907f7e5..ac6f18b 100644
--- a/hosts/elnupad/polybar.nix
+++ b/hosts/elnupad/polybar.nix
@@ -1,5 +1,14 @@
 { pkgs, lib, ... }:
 
+let
+  # TODO: eliminate redundant color definitions
+  background = "#2e3440";
+  background-alt = "#3b4252";
+  foreground = "#eceff4";
+  primary = "#8fbcbb";
+  alert = "#bf616a";
+  disabled = "#434c5e";
+in
 {
   home.packages = with pkgs; [ lm_sensors ];
   services.polybar.config = {