Is there a setting that will automatically create a gradient where the outter edges of all the bars in a bar chart have a "beveled/feathered" look?

I tried simulating this with a LinearGradient, but you can only do this in one direction (ie. Up/down or left/right), but not both.

I also tried using a RadialGradient with limited success.

Any samples or tips to accomplish this look and feel?