public void Start()
{
m_FillTexture = VisualizationUtils.MakeTexture(16, 16, new Color(0.125f, 0.19f, 0.25f));
m_Connection = ROSConnection.GetOrCreateInstance();
HudPanel.RegisterTab(this, (int)HudTabOrdering.Topics);
HudPanel.RegisterTab(new VisualizationLayoutTab(this), (int)HudTabOrdering.Layout);
LoadLayout();
m_Connection.ListenForTopics(OnNewTopic, notifyAllExistingTopics: true);
}