I'm using Artha Dictionary, and all I want to do is hide its icon from the notification area without loosing its functionality (i.e. Ctrl+W to bring up the meaning of selected word and show the same using NotifyOSD.). The only reason why I want to do it is, Artha's icon is not monochrome and hence doesn't integrate well with rest of the icons showing in the panel.
While using Unity, the icon is not shown and I still get proper notifications of word meanings I look up, the icon appears on panel in the classic mode. Removing Notification Area from the panel also removes Artha's functionality. If icon cannot be hidden, I'll prefer to have a monochrome icon for Artha that looks perfect on panel.