The biggest shocker here, is that this fuctiontion is not on the Feature Request list. This is a HUGE missing feature. And an easy one to add as well. Polygon selection is much easier than Magnetic lasso, but still more of a programming challenge than ratio and fixed size selection tool.
Man, I was really hoping that Paint.net had ratio selection. Working with digital pictures, this is about the biggest requirement.
And so that means that if I have to use another tool to do ALL my cropping, because freehand cropping is almost 99% useless for just about everything. Web work, images for wallpapers, photos for standard print sizes, document images for standard paper size, etc.... all require ratio or fixed sizes. Freehand cropping is worthless 99% of the time.
So if I need to use another imaging tool for cropping, I may as well use that other tool for everything else. Just thought it would be cool to use a freeware tool instead.