Pull apart pie chart slices in Illustrator but retain stroke
I have a pie chart created using Illustrator CC's Pie Graph Tool:
I want to separate the slices to create a gap in-between. I see that this has been asked and answered before, but the answer causes a loss to each slice's stroke (gray becomes white):
Is there a way to add the dark gray stroke back onto the slices? I know that technically they are not actually separated, so must they be ungrouped or something first?
First ungroup the Graph by pressing Shift+Cmd/Ctrl+G. This warning will appear:
After this you will get lots of groups within groups. To get rid of this press Shift+Cmd/Ctrl+G some more, until only the slices of your graph are left in the layers panel:
Effect > Path > Offset Path with a negative offset value: