Hi, I'm trying to make the pure black areas transparent in
.bmp files in the library, when using BitmapData.
I have used threshold() to convert black to transparent,
however as I am creating the BitmapData instances with loadBitmap()
it sets the ".transparent" to false (as the source .bmps don't have
transparency). I can't then change this. How would I find a way
around this? Should I load the bitmaps into the BitmapData
structures in some other way than loadBitmap()???