Install Nord fcitx5 theme

fcitx5/default.nix

@@ -1,3 +1,5 @@
+{ pkgs, ... }:
+
 {
   i18n.inputMethod = {
     enabled = "fcitx5";
@@ -11,4 +13,14 @@
     XMODIFIERS = "@im=fcitx";
     GLFW_IM_MODULE = "ibus"; # IME support in anthy
   };
+
+  home.file = {
+    ".local/share/fcitx5/themes/Nord-Dark".source = let repo = pkgs.fetchFromGitHub {
+      owner = "tonyfettes";
+      repo = "fcitx5-nord";
+      rev = "bdaa8fb723b8d0b22f237c9a60195c5f9c9d74d1";
+      sha256 = "qVo/0ivZ5gfUP17G29CAW0MrRFUO0KN1ADl1I/rvchE=";
+    }; in "${repo}/Nord-Dark";
+    ".config/fcitx5/conf/classicui.conf".text = "Theme=Nord-Dark";
+  };
 }