Gooooooooooooeeey goodness

I never realized how hard it was to design a good GUI until a project here at work. I am coding a GUI here for a software package we are trying to upgrade. It's incredible how anal some of the GUI designers are. They want things to be VERY specific. I designed a file browse button that was about 5 pixels too wide. Usually unnoticeable to the untrained eye, but this designer instantly zeroed in on it and told me it needed to be changed to be more square. I fully understand the important of a good GUI though as I know my friends and I have complained greatly over little details in other GUIs we have used.