reorder tool icons, add popup auto-hide after interaction

src/node_panel_color.h

@@ -6,6 +6,7 @@
 class NodePanelColor : public Node
 {
 public:
+    bool m_interacted = false;
     NodeColorQuad* m_quad;
     NodeSliderHue* m_hue;
     glm::vec4 m_base_color;