It's bizarre that neither the README nor the associated minimal site explains what it does in detail, with screenshots or anything.
I'm assuming this is a modern version of GDI++, which a decade ago brought Mac-style font rendering to Windows, but stopped being maintained a while ago.
For people who aren't aware of the difference, it's essentially that Windows uses heavy font hinting to try to align character strokes with pixel boundaries which produces sharper letterforms at the cost of distortion of the aesthetic personality of the font, while Mac antialiases more to faithfully maintain the accurate letterforms of a typeface, at the cost of being blurrier.
It's basically the tabs-vs-spaces debate of font rendering. Nobody's "right", it's just personal preference. Fortunately, high-resolution "retina" style displays make the distinction much less important, in the same way that it's entirely irrelevant in high-resolution printing.
I'm assuming this is a modern version of GDI++, which a decade ago brought Mac-style font rendering to Windows, but stopped being maintained a while ago.
For people who aren't aware of the difference, it's essentially that Windows uses heavy font hinting to try to align character strokes with pixel boundaries which produces sharper letterforms at the cost of distortion of the aesthetic personality of the font, while Mac antialiases more to faithfully maintain the accurate letterforms of a typeface, at the cost of being blurrier.
It's basically the tabs-vs-spaces debate of font rendering. Nobody's "right", it's just personal preference. Fortunately, high-resolution "retina" style displays make the distinction much less important, in the same way that it's entirely irrelevant in high-resolution printing.