HowTo Transparent Panel

How to make transparent panels without using external images?

I saw an old post where apparently transparency is not supported for panels, but only for frames.

On the other hand, few posts discussed about transparent background panels, but I couldnt

get any working example from those posts.

How I tried:

Within init of the panel

self.SetBackgroundColour(wx.Colour(120,120,120,128))

self.Refresh()

This changes the bgcolor to solid color, but doesnt honor the transparency.

How to achieve that?