[RCD] How to add a listicon from a plugin

Hi all,

I use an old plugin ( pf_alias) and I'd like to alter it to fit nicely into the new larry skin. I don't know however if it's possible to add a list-icon from a plugin. I checked the managesieve plugin ( although that one places an icon in the settings pane and not in the section pane) but it seems that one uses an icon outside it's own plugin directory ( one from listicons.png)

Can anyone tell me if it's possible to add a custom icon from a plugin into the settings>section-pane without altering anything else but the plugin code?

screenshot to clarify more: The plugin item doesn't have an icon

BR,

Mark