Thank you for the continuous work on improving JFileUpload, it is still a very useful product.
A feature request would be support for high-resolution/retina screens. My laptop has a 3200x1800 screen and while the scaling works fine with most web elements, the Java applet is still in its original size, having minuscule text on my screen. Perhaps a parameter to increase the font size? I know I could modify the parameters file, but I need this to be more dynamic.