Draw Custom Editor Gizmo - Simple

editor_gizmo.cs

void OnDrawGizmos (){
	// In Editor
	if (!Application.isPlaying){
		// Draw custom gizmo
		Gizmos.DrawIcon(transform.position, "spawn_gizmo.png", true);
		// Draw yellow box at size of character, for easier placement in level
		Gizmos.color = Color.yellow;
		Gizmos.DrawWireCube(transform.position, new Vector3(0.8f, 2.0f, 0.8f));
	}
}