Not sure if this has been reported, but I believe there may be a bug in the
flatspark.skins.ButtonIconSkin.mxml as of Flex SDK 4.14 nightly build #61...
The default state of the buttonIcon is up(stateUp). The fill_over,
fill_down, and fill_disabled rects are included in the corresponding states
only. So if the cornerRadius != inherited &/or non-inherited property
returned by getStyle() it will set the fill_up.radiusX property but you will
get a cannot access a null object or property when it tries to set the
radiusX property of the other rects because they are not included in the
current state.override protected function
updateDisplayList(unscaledWidth:Number, unscaledHeight:Number) : void{ var
cr:Number = getStyle("cornerRadius"); if
(cornerRadius != cr) {
cornerRadius = cr; fill_up.radiusX = cornerRadius;
fill_over.radiusX =
cornerRadius; fill_down.radiusX = cornerRadius;
fill_disabled.radiusX =
cornerRadius; }
super.updateDisplayList(unscaledWidth,
unscaledHeight);}I have tested this against the 4.14 nightly build #61 ...
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