added color

include/uml/color.h

@@ -3,11 +3,20 @@
 //
 
 #pragma once
+
 #include "uml/Vector3.h"
 #include <cstdint>
+#include "uml/Vector4.h"
+
 
 namespace uml::color
 {
     [[nodiscard]]
     Vector3 Blend(const Vector3& first, const Vector3& second, float ratio);
+
+    class Color : public Vector4
+    {
+        public:
+            [[nodiscard]] Color Blend(const Color& other, float ratio) const;
+    };
 }