gtk: add theming

home/programs/default.nix

@@ -1,6 +1,7 @@
 {pkgs, ...}: {
   imports = [
     ./browsers.nix
+    ./gtk.nix
   ];
 
   programs.fzf.enable = true;

home/programs/gtk.nix

@@ -0,0 +1,43 @@
+{
+  pkgs,
+  config,
+  ...
+}: {
+  home.pointerCursor = {
+    package = pkgs.bibata-cursors;
+    name = "Bibata-Modern-Classic";
+    size = 16;
+    gtk.enable = true;
+    x11.enable = true;
+  };
+
+  gtk = {
+    enable = true;
+
+    font = {
+      name = "Inter";
+      package = pkgs.inter;
+      size = 9;
+    };
+
+    gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";
+
+    iconTheme = {
+      name = "Papirus-Dark";
+      package = pkgs.papirus-icon-theme;
+    };
+
+    theme = let
+      accent = "lavender";
+      variant = "frappe";
+      size = "standard";
+    in {
+      name = "catppuccin-${variant}-${accent}-${size}";
+      package = pkgs.catppuccin-gtk.override {
+        # https://github.com/NixOS/nixpkgs/blob/nixos-23.05/pkgs/data/themes/catppuccin-gtk/default.nix
+        accents = [accent];
+        inherit variant size;
+      };
+    };
+  };
+}