UnityEditor.AudioMixerGroupSelector.GroupTreeViewGUI.GetIconForNode C# (CSharp) Method

            protected override Texture GetIconForNode(TreeViewItem item)
            {
                if ((item != null) && (item.icon != null))
                {
                    return item.icon;
                }
                if (item.id == 0)
                {
                    return this.k_AudioListenerIcon;
                }
                return this.k_AudioGroupIcon;
            }