New answers tagged ui
Try this application, it has a LOT of OSX modifications: http://www.bresink.com/osx/TinkerTool.html
I'm not 100% sure, but it seems to be caused by Firefox. If Finder and Terminal are the first windows to be opened after booting the system, they look fine. If I begin by starting Firefox instead, windows opened afterwards become corrupted.
After the OS X Mavericks v10.9.4 Update, window corners have returned to their previous glory. Update notes don't mention any issue of this kind, so I guess it might have been fixed as a side effect of running the system updater. EDIT: Aaand the corners are ugly again. It's really weird.
The ProcessOn diagram platform is completely free, and includes a drawing application that is actually fairly useable for creating diagrams and flowcharts at the simpler end of the scale.
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