[css4-background] border-corner-shape extension point?

Hi all,

Today, I released [1] an app [2] which allows people to experiment with the upcoming border-corner-shape [3] property before it’s implemented in browsers, so we get timely feedback. One idea that James Padolsey suggested [4] was to allow people to define custom corner shapes, perhaps by cubic beziers. I think it’s a good idea, perhaps if we re-use the existing cubic-bezier() [5] notation from transitions and move it to css4-values as a new value type.
Thoughts?

[1]: http://lea.verou.me/2013/03/preview-border-corner-shape-before-implementations/
[2]: http://leaverou.github.com/border-corner-shape
[3]: http://dev.w3.org/csswg/css4-background/#border-corner-shape
[4]: https://twitter.com/padolsey/status/315861268575694849
[5]: http://www.w3.org/TR/css3-transitions/#single-transition-timing-function



Lea Verou
W3C developer relations
http://w3.org/people/all#lea ✿ http://lea.verou.me ✿ @leaverou