draw a box with transparent background (outline)

I am trying to draw an outline (a transparent box with colored border essentially)

I have the following code adapted from here

 void OnGUI(){
     GUI.Box (new Rect (10,10,200,30), "Object", InitStyles(new Color( 0f, 0f, 0f, 0.0f )));
 }
 private GUIStyle InitStyles(Color color){
     GUIStyle currentStyle = null;
     if( currentStyle == null ){
         currentStyle = new GUIStyle (GUI.skin.box );
         currentStyle.normal.background = MakeTex( 2, 2, color );
     }
     return currentStyle;
 }
 
 private Texture2D MakeTex( int width, int height, Color col ){
     Color[] pix = new Color[width * height];
     for( int i = 0; i < pix.Length; ++i ){
         pix[ i ] = col;
     }
     Texture2D result = new Texture2D( width, height );
     result.SetPixels( pix );
     result.Apply();
     return result;
 }

T$$anonymous$$s is getting rid of the border along with the background color.

Is there a better way to do t$$anonymous$$s?