Configuration of prompt cancel pygments highlight

Hi. I install latest version of Jupyter and IPython. I try configure prompt in ~.jupyter/

c.JupyterWidget.in_prompt = '[<span class="in-prompt-number">%i</span>]>>> '
c.JupyterWidget.out_prompt = '[<span class="out-prompt-number">%i</span>]-->'

This works. But when I config prompt, highlight of syntax doesn’t work.

I tried rewrite variables default_in_prompt and default_out_prompt in file site-packages/qtconsole/ in my virtual-enviroment but with same result.

Have you any idea? It is bug?

Thanks, Marek