Task panel style themes

Hello All,
I created simple SDI application and added TaskPanel control. No I can set styles this way:
m_wndMyTaskPanel.SetTheme(xtpTaskPanelThemeNativeWinXPPlain);
I also need to change colors and fonts of some elements in my task panel. But if I set my custom paint manager:
m_wndMyTaskPanel.SetCustomTheme(m_taskPanelPaintManager);
XTPTaskPanelPaintTheme themes does not have any effect.
Please advice me how can I set both some system style (e.g. xtpTaskPanelThemeNativeWinXPPlain) and my custom style.
Thank you.

I see, thank you