[flexcoders] Axis titles on CartesianChart blurry, but not on ColumnChart

[netdeep]

This seems like a bug with Flex which I never noticed until just recently, but 
the vertical axis titles for CartesianCharts (and LineCharts as well) are 
blurry at higher resolutions.  However this problem is not present with 
ColumnChart.  I had to encode the charts with ImageSnapshot and export them as 
png files and I set the dpi to 300 and this is when I noticed this glitch.  So 
maybe this also has to do with ImageSnapshot.
 
Have others noticed this problem and is there a way around it?