My application is multilingual

I use command buttons

Command buttons are not really fancy when trying to make a form look better visually.

I guess I could use images to replace those command buttons but that would complicate things for a multilingual app.

So far the only thing that improves my app is to put graphics on the command button. Better than nothing but if only I could have round command buttons. Add 3D effect...

What could I do to improve the look and feel of my app?