For generic 0402 polarized LEDs and diodes (possibly others; these are all that applied to my board), the footprint silkscreen has the dot on the anode side. This is frustrating since I just got a run of 10 boards and all the diodes are backwards! The industry standard is to have the dot on the cathode side.
Hopefully Upverter can fix this soon, but to be honest I’ve completely giving up on them fixing anything at this point, so at least beware of this issue and don’t use the generic footprints for polarized parts!