How legal is it? Ok it's MIT license, but if I use a UI design, do I infringe on Microsoft's imtellectual property? Is UI design copyrightable? I have the same question for another UI framework, which by default comes with the creator's design guidelines: Is it enough to change the color of the header to avoid brand confusion and be safe from infringement?
From what I can gather, UI design patents actually exist. However Apple won against Samsung but lost a case against Microsoft, which demonstrates that it's still important to patent UI functionnality (such as the bounced scroll) in addition to the graphical elements. http://patents.stackexchange.com/questions/4020/protecting-a...
Any further answer is welcome.