Please review my webapp: Da Button Factory - create shiny buttons
fragmede: This is really nicely done. I like it a lot. Branding is important; make a "Buttons by DaButtonFactory.com" button that people can use.Others have already mentioned a colorwheel. Adding that would help usability. Unless I've been doing colors recently, I don't know #f00 from #0f0.Even a simple popup-grid of colors, something like what makebutton.com has for color selection would help here.Minor bugs I came across:Undo does not work for swapping the two background colors.If I hammer the 'Size +' (or any other) button, I get rate limited. I didn't look at the code, is there a query for every button press when I go from 200 -> 250 for the width?The error message for non-integers could be better:
  Value "11.2" invalid for option text-size (number between 0 and 2000 expected). 
Actually, the error messages could be better all around, but it isn't a huge deal.West/East only shadows don't work: 
  Value "nonew" invalid for option shadow-orient (possible values: "n", "s", "e", "w", "ne", "no", "so", "se").The top-left text for "Da Button Factory" should be an actual link. (Or just clear the button settings back to the default, or it could even be the 'randomize' link that others have asked for.)