This has ugly corners:
<s:Rect id="rectCard" radiusX="10" radiusY="10" width="247" height="156">
<s:SolidColorStroke color="#ACBFC1" weight="1" caps="round" joints="round"/>
How can I fix that please?
I think that 1 pixel corners are always going to look a little ragged especially when a light color, I always use a 2 pixel border if the border is shaped it always looks so much better , you can also put a bit of alpha on it if you dont want it to stand out to much.
Although the 1 pixel border looks not only ragged, but also out place.