bug: gtkIconTheme not working after update

[niksingh710]

Are you following the right branch?

• My Nixpkgs and Home Manager versions are in sync

Is there an existing issue for this?

• I have searched the existing issues

Issue description

after updating nixpkgs and home-manager
setting

gtk.iconTheme = {
  name = "Qogir-dark";
  package = pkgs.qogir-icon-theme;
};

does not install the theme.

Maintainer CC

No response

System information

- system: `"x86_64-linux"`
 - host os: `Linux 6.12.13-xanmod1, NixOS, 25.05 (Warbler), 25.05.20250218.73cf49b`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.24.12`
 - nixpkgs: `/etc/nixpkgs/channels/nixpkgs`