Bitmap transparency

[xapantu <xapantu gmail com>]

Hi,

I would like to know if I could set a custom opacity value for bitmap ?
I can't find it in the api reference...

And if it is not (yet) implemented, maybe I can do a patch ? You agree
to include it in a next version of GooCanvas ? (because I don't want to
ask to the user to patch GooCanvas ^^).

I am a developer of Ella (http://ella.tuxfamily.org) and we really need
this feature ^^.

Thanks for all your work, GooCanvas is definitively awesome!

--xapantu