The icon, or the program? My answer to both is no.
As for making icons look better in the shortcut bar? It depends on the quality of the icon and the sizes that it is available at. You could try showing them in a larger size (right click toolbar, view, large).
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS