How to change the control panel background?

[winoxy]

Thanks, but that depends on another program and i would like to share my theme so i need to integrate it to the shell, i know is this line but idk how to put it in my shell

<style resid="NavPanelStyle"> <element background="20567" />
<if id="atom(NavPanel)">
<element background="themeable(dtb(CONTROLPANEL,1,1),window)" accessible="true" accname="CPNavPanel" accrole="pane" />

Maybe i'll just grab one of those shells and done