UnityEditor.TextureInspector.DrawRect C# (CSharp) Method

        private void DrawRect(Rect rect)
        {
            GL.Vertex(new Vector3(rect.xMin, rect.yMin, 0f));
            GL.Vertex(new Vector3(rect.xMax, rect.yMin, 0f));
            GL.Vertex(new Vector3(rect.xMax, rect.yMin, 0f));
            GL.Vertex(new Vector3(rect.xMax, rect.yMax, 0f));
            GL.Vertex(new Vector3(rect.xMax, rect.yMax, 0f));
            GL.Vertex(new Vector3(rect.xMin, rect.yMax, 0f));
            GL.Vertex(new Vector3(rect.xMin, rect.yMax, 0f));
            GL.Vertex(new Vector3(rect.xMin, rect.yMin, 0f));
        }