How to improve the quality of embeded static image graphs -->Issues=pixelated

Hello guys,
Thanks for this great software.
I have one question. Is there a way I can improve the quality of the static images. I don’t see an option to set the resolution.
[attachment 1865 test.png]

I’ve tried setting: aliasedGraph=0 (default) and &aliasedGraph=1 and did not see any difference.