I would like to be able to pick colours from the swatch for the line and effects and not just the fill as it stands at the moment. It gets pretty tiring very quickly having to write down the rgb values of a fill so that I can have the line the same colour, (so that I can have a coloured fill with a textured edge - nice feature that.) or match a gradient to a flat colour.
Right click on the swatch to set the line color, and you're set. Can't help with the effects colors, but the ability to grab colors out of the swatches for them would be a mighty handy thing.