I'm building a GUI with GTK+. I want to use the same widgets used by Rhythmbox in the left side-bar. But I can't find them in Glade. Are they just buttons ?

Thanks for your help!
I'm building a GUI with GTK+. I want to use the same widgets used by Rhythmbox in the left side-bar. But I can't find them in Glade. Are they just buttons ?

Thanks for your help!
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Rhythmbox uses a GtkTreeView with CellRenderers for pixbuf and text.
For question about the structure and widgets used by gtk programs I can highly recommend to use the Gtk Inspector. It also allows you to fool around with the properties and css.