VSCode Adwaita Theme Title Bar Not Styling

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1

I’m trying to get the vscode-adwaita extension working on NixOS with GNOME on Wayland in my flake, but the custom title bar isn’t being styled properly. The theme works fine in the editor, but the title bar remains unstyled.

What I’m trying:

programs.vscode = {
  enable = true;
  package = pkgs.vscode.override {
    commandLineArgs = [
      "--ozone-platform=wayland"
      "--enable-features=UseOzonePlatform"
    ];
  };
  profiles.default = {
    extensions = with pkgs.vscode-extensions; [
      piousdeer.adwaita-theme
      ...
    ];
    userSettings = {
      "window.titleBarStyle" = "custom";
      "workbench.preferredDarkColorTheme" = "Adwaita Dark & default syntax highlighting";
      "workbench.productIconTheme" = "adwaita";
      ...
    };
  };
};