transperent background gui

[n3wbie]

Can Some one point me out how to get a transperent background gui which is always on top but doesnt collect keystrokes sent 

What i want to achieve

When a particular app is open and is on top most position means active on screen there should be a floating menu/Buttons visible on top of screen 

but it should not hinder input to other app

A little part that i figured out is using always on top 

but now i want to create a background Transperent Gui but dont know where to start for that

using koda i marked transperent but it seems that its for some other purpose

Update I dont want gui title bar as well

Thanks in advance

Edited September 24, 2017 by n3wbie