update niri config

user/niri/theme.nix

@@ -0,0 +1,94 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  inherit (config.my) theme font desktop;
+  inherit (theme)
+    color
+    gtk_theme
+    icon_theme
+    cursor_theme
+    ;
+in
+lib.mkIf (desktop == "niri") {
+  home.pointerCursor = {
+    name = cursor_theme;
+    size = 24;
+    package = pkgs.bibata-cursors;
+    gtk.enable = true;
+  };
+  gtk = {
+    enable = true;
+    font = {
+      name = font.interface;
+      size = font.size.small;
+    };
+    theme = {
+      name = gtk_theme;
+      package = pkgs.orchis_theme_compact;
+    };
+    iconTheme = {
+      name = icon_theme;
+      package = pkgs.papirus_red;
+    };
+  }
+  // (
+    let
+      shared.extraConfig = {
+        gtk-decoration-layout = "menu:";
+      };
+    in
+    {
+      gtk4 = shared;
+      gtk3 = shared;
+    }
+  );
+
+  xdg.configFile."gtk-3.0/settings.ini".force = true;
+  xdg.configFile."gtk-4.0/settings.ini".force = true;
+
+  qt = {
+    enable = true;
+    platformTheme.name = "gtk3";
+    style.name = "kvantum";
+  };
+
+  dconf.settings = {
+    "org/gnome/desktop/interface" = {
+      gtk-theme = gtk_theme;
+      icon-theme = icon_theme;
+      cursor-theme = cursor_theme;
+      color-scheme = "prefer-${color.type}";
+    };
+    "org/gnome/desktop/wm/preferences" = {
+      button-layout = "menu:";
+    };
+  };
+
+  services.xsettingsd = {
+    enable = true;
+    settings = {
+      "Gtk/FontName" = "${font.interface} ${toString font.size.small}";
+      "Net/ThemeName" = "${gtk_theme}";
+      "Net/IconThemeName" = "${icon_theme}";
+      "Gtk/CursorThemeName" = "${cursor_theme}";
+      "Gtk/CursorThemeSize" = 24;
+      "Net/SoundThemeName" = "freedesktop";
+    };
+  };
+
+  home.packages = with pkgs; [
+    pkgs.bibata-cursors
+    pkgs.orchis_theme_compact
+    pkgs.papirus_red
+
+    liberation_ttf
+    hack-font
+    font-awesome_5
+    fira-code
+    material-wifi-icons
+  ];
+}