The Brown PVC has a nice tint to it...
It is a Midwest Styrene, or Super Styrene product...
http://www.midwestproducts.com/catal...d=19&sa2_id=21
The SDM tug is glued, using canopy glue, up against balsa painted white...
The Fire boat is cemented behind the window frames... and you can see through it..
The Tito Neri, Minyamo, windows are clear styrene painted black behind...