Hi Guys,
I had a good look at the PDF bugs today and believe I have sorted them out.
Although I could not replicate the bug where the colour changes when the mouse/pen is released, so please download and have a play with this version and tell me how it goes:
http://al.chemy.org/files/Alchemy-007.2-Debug.zipI have changed the Gradient module to fade between FG colour with a given transparency value and FG colour with zero transparency. This seems to work better - not sure why I didn't do this in the first place!
The problem with the colours being distorted in the PDF was caused by a conversion from RGB>CMYK>RGB when transparent colours were present - this would have occurred on all Adobe software, but after some investigation I found a way to avoid this and the colours look good for me on Adobe Reader.
Please let me know how you get on.
Thanks for the help!