static float vertices[] = {
        // positions            // colors
-       0.5f, 0.5f, 0.0f,       1.0f, 0.0f, 0.5f,       // top right
-       0.5f, -0.5f, 0.0f,      0.0f, 1.0f, 0.0f,       // bottom right
-       -0.5f, -0.5f, 0.0f,     0.5f, 0.0f, 0.5f,       // bottom left
-       -0.5f, 0.5f, 0.0f,      0.5f, 0.0f, 1.0f        // top left
+       0.5f, 0.5f, 0.0f,       1.0f, 0.0f, 0.0f,       // top right
+       0.5f, -0.5f, 0.0f,      0.0f, 0.0f, 1.0f,       // bottom right
+       -0.5f, -0.5f, 0.0f,     0.0f, 0.0f, 1.0f,       // bottom left
+       -0.5f, 0.5f, 0.0f,      1.0f, 0.0f, 0.0f        // top left
 };
 
 static unsigned int indices[] = {