I have an idea, it's gonna take some hard manual editing pixel by pixel but I'll try to get something of it. Also, probably needs a separate edit for each size (!?) I mean, the 24-bit thing is easy, allows gradients in the transparency...
If the stars should appear one night in a thousand years, how would men believe and adore and preserve for many generations the remembrance of the city of God? - from 'Nightfall' by I. Asimov The Outcasts consider Siniestre Nube a sacred place for several reasons. Early explorers discovered a jumphole within the depths of the cloud that leads to a strange world of ringed stars and strange craft. All ships in the burrial ground are placed facing that hole to honor the Alien Spirits. - An Outcast rumor