feat(nvim-hm): set gtk theme via nix home manager

config/default.nix

@@ -12,10 +12,10 @@ let
       })
       # HACK: We don't use the absolute path in readDir to respect pure evaluation in nix flakes.
       (builtins.attrNames (builtins.readDir ../dots/${dir}))));
+    gtkStyle = "gtk2";
 in
 {
   programs.home-manager.enable = true;
-
   home = {
     packages = with pkgs; [
       gcc
@@ -56,7 +56,16 @@ in
       ripgrep
       fd
       nixfmt
+      qt6Packages.qt6gtk2
+      qt6Packages.qt6ct
+      libsForQt5.qtstyleplugins
+      libsForQt5.qt5ct
+      lxappearance
+      webcord
+      blueman
+      gtk-engine-murrine
     ];
+
     file =
       {
         ".local/" = {
@@ -77,12 +86,65 @@ in
           force = true;
         };
       } // softLinkDots ".config";
+
+    sessionVariables = {
+      GTK_THEME = "Kanagawa-Borderless";
+      QT_QPA_PLATFORMTHEME = "${gtkStyle}";
+    };
   };
 
-  programs.neovim = {
+  programs = {
+    zsh = {
+      enable = true;
+      initExtra = ''
+        . "$HOME/.nix-profile/etc/profile.d/hm-session-vars.sh"
+      '';
+      profileExtra = ''
+        export GTK_PATH="$HOME/.nix-profile/lib/gtk-2.0"
+      '';
+    };
+    neovim = {
       enable = true;
       extraPackages = with pkgs; [ sqlite gh ];
       # Magick is required for image.nvim
       extraLuaPackages = lp: [ lp.magick ];
     };
+  };
+
+  gtk =
+    let
+      extraGtkConfig = {
+        gtk-application-prefer-dark-theme = true;
+        gtk-cursor-theme-size = 0;
+        gtk-enable-event-sounds = 1;
+        gtk-enable-input-feedback-sounds = 1;
+        gtk-xft-antialias = 1;
+        gtk-xft-hinting = 1;
+        gtk-xft-hintstyle = "hintfull";
+      };
+    in
+    {
+      enable = true;
+      theme = {
+        name = "Kanagawa-Borderless";
+        package = pkgs.kanagawa-gtk-theme;
+      };
+      iconTheme = {
+        name = "Kanagawa";
+        package = pkgs.kanagawa-gtk-theme;
+      };
+      font = {
+        name = "Open Sans";
+        size = 11;
+        package = pkgs.open-sans;
+      };
+      gtk3.extraConfig = extraGtkConfig;
+      gtk4.extraConfig = extraGtkConfig;
+    };
+
+  qt = {
+    enable = true;
+    platformTheme = "gtk";
+  };
+
 }

dots/.config/gtk-3.0/settings.ini

@@ -1,16 +0,0 @@
-[Settings]
-gtk-icon-theme-name=Kanagawa
-gtk-theme-name=Kanagawa-Borderless
-gtk-font-name=Open Sans 11
-gtk-application-prefer-dark-theme=0
-gtk-cursor-theme-name=Adwaita
-gtk-cursor-theme-size=0
-gtk-toolbar-style=GTK_TOOLBAR_BOTH
-gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
-gtk-button-images=1
-gtk-menu-images=1
-gtk-enable-event-sounds=1
-gtk-enable-input-feedback-sounds=1
-gtk-xft-antialias=1
-gtk-xft-hinting=1
-gtk-xft-hintstyle=hintfull

dots/.config/gtk-4.0/settings.ini

@@ -1,16 +0,0 @@
-[Settings]
-gtk-icon-theme-name=Kanagawa
-gtk-theme-name=Kanagawa-Borderless
-gtk-font-name=Open Sans 11
-gtk-application-prefer-dark-theme=0
-gtk-cursor-theme-name=Adwaita
-gtk-cursor-theme-size=0
-gtk-toolbar-style=GTK_TOOLBAR_BOTH
-gtk-toolbar-icon-size=GTK_ICON_SIZE_LARGE_TOOLBAR
-gtk-button-images=1
-gtk-menu-images=1
-gtk-enable-event-sounds=1
-gtk-enable-input-feedback-sounds=1
-gtk-xft-antialias=1
-gtk-xft-hinting=1
-gtk-xft-hintstyle=hintfull

flake.nix

@@ -24,6 +24,7 @@
           ({
             nixpkgs.overlays = [
               inputs.neovim-nightly-overlay.overlay
+              (self: super: { kanagawa-gtk-theme = super.callPackage ./pkgs/kanagawa-gtk { }; })
             ];
             home = {
               username = "${username}";

pkgs/kanagawa-gtk/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenvNoCC, fetchFromGitHub, gnome-themes-extra, gtk-engine-murrine }:
+
+stdenvNoCC.mkDerivation {
+  pname = "kanagawa-gtk-theme";
+  version = "unstable-2023-11-30";
+
+  src = fetchFromGitHub {
+    owner = "Fausto-Korpsvart";
+    repo = "Kanagawa-GKT-Theme";
+    rev = "35936a1e3bbd329339991b29725fc1f67f192c1e";
+    hash = "sha256-BZRmjVas8q6zsYbXFk4bCk5Ec/3liy9PQ8fqFGHAXe0=";
+  };
+
+  propagatedUserEnvPkgs = [ gtk-engine-murrine ];
+
+  buildInputs = [ gnome-themes-extra ];
+
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/share/themes/{Kanagawa-Border,Kanagawa-Borderless}
+    mkdir -p $out/share/icons
+    cp -r icons/Kanagawa $out/share/icons
+    cp -r themes/Kanagawa-B/* $out/share/themes/Kanagawa-Border
+    cp -r themes/Kanagawa-BL/* $out/share/themes/Kanagawa-Borderless
+    runHook postInstall
+  '';
+}