另一个DialogFragment标题颜色问题

public class CustomDialogFragment extends DialogFragment {
    @NonNull
    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle("对话框标题");

        // 设置标题颜色
        int titleColor = getResources().getColor(R.color.dialog_title_color);
        builder.setTitle(Html.fromHtml("<font color='" + titleColor + "'>对话框标题</font>"));

        // 添加其他对话框内容和按钮等

        return builder.create();
    }
}

CustomDialogFragment dialogFragment = new CustomDialogFragment();
dialogFragment.show(getSupportFragmentManager(), "custom_dialog");