Whoever has used a Mac in his life (by will or by force) have probably been impressed by the rounded screen corners, adding a powerful design touch to the device. It seems the graphical feature was removed as of Leopard (10.5), but I still remember the effect it gave to a desktop, as I played around with Mac OS 7 on my PSP or with a PowerMac G3. While in a asthetic code rush I took some pleasure creating a little program launching at startup, and giving your Microsoft Windows screen this sympathetic effect. Sometimes cutting corners can turn well!
Mac OS 7 screenshot (c) osxdaily.com
Net Framework 4.5 required