Update xy_grid.py

        if not x_opt.label == 'Nothing':

            p.extra_generation_params["XY Plot X Type"] = x_opt.label

            p.extra_generation_params["X Values"] = '{' + x_values + '}'

            p.extra_generation_params["XY Plot X Values"] = '{' + x_values + '}'

            if x_opt.label in ["Seed","Var. seed"] and not no_fixed_seeds:

                p.extra_generation_params["Fixed X Values"] = '{' + ", ".join([str(x) for x in xs])+ '}'

                p.extra_generation_params["XY Plot Fixed X Values"] = '{' + ", ".join([str(x) for x in xs])+ '}'

        if not y_opt.label == 'Nothing':

            p.extra_generation_params["XY Plot Y Type"] = y_opt.label

            p.extra_generation_params["Y Values"] = '{' + y_values + '}'

            p.extra_generation_params["XY Plot Y Values"] = '{' + y_values + '}'

            if y_opt.label in ["Seed","Var. seed"] and not no_fixed_seeds:

                p.extra_generation_params["Fixed Y Values"] = '{' + ", ".join([str(y) for y in ys])+ '}'

                p.extra_generation_params["XY Plot Fixed Y Values"] = '{' + ", ".join([str(y) for y in ys])+ '}'

        processed = draw_xy_grid(

            p,