Move UI folder

UI/UI_led.hpp

@@ -0,0 +1,19 @@
+#pragma once
+#include "UI_item.hpp"
+#include <string>
+
+#define UI_LED_TYPE std::string("UI_led")
+
+class UI_led : public UI_item
+{
+    Q_OBJECT
+  public:
+    UI_led(QObject *parent = nullptr);
+    UI_led(std::string text, Color fg_color, Color bg_color, QObject *parent = nullptr);
+    UI_led(const json &j, QObject *parent = nullptr);
+
+    void set_led(bool state, Color on, Color off);
+
+    void from_json(const json &j) override;
+    json to_json(size_t id) const override;
+};