GTK apps doesn't have the right cursor

[bbigras]

Not sure if it's a bug, but in Firefox and Qalculate! the cursor is not customized.

The cursor is fine in wireshark.

I'm using the follow code.

{
  catppuccin = {
    cursors.enable = true;
    gtk = {
      enable = true;
      # gnomeShellTheme = true;
      icon.enable = true;
    };
    kvantum.enable = true;
  };

  gtk = {
    enable = true;
    gtk2.extraConfig = "gtk-application-prefer-dark-theme = true";
    gtk3.extraConfig.gtk-application-prefer-dark-theme = true;
  };

  qt = {
    enable = true;
    platformTheme.name = "kvantum";
    style.name = "kvantum";
  };
}