Blue rear plastic window?

[Pond]

Forgive my naivety as I'm new to all this, but.....
My new (to me) Topaz Blue 2001 3L seems to have a blue tint to the rear window. Is it scratched to buggery, or is it supposed to be like that?
It looks relatively unscratched but my eyesight isn't what it was.

 

[Eddie Zedder]

The original BMW windows had a slight green tint to them. Aftermarket ones are available in a variety of tints so yours has probably been changed at some point in it's life.

 

[Stevo7682]

If its original (probably not if blue tint) then bmw logo embossed onto the lower nearside corner if it aint there definitely aftermarket.
Stephen

 

[Pond]

It's got 'Renolit flexiglas' written on it so presume aftermarket. It's a bit strange looking through a blue window!
I think I will need a new roof at some stage, anyway, as the fabric is coming away from the window in all four corners.

 

[jaguartvr]

Most of them now are yellow (and cloudy).