Java around the world

I recently "Stumble!"ed upon this Java applet and I really love using it, I made my friends cool signatures for facebook and myspace. However this took some time to do, because I had to get it right the first time. I don't know if it's simple or not, I don't program. An explanation of what I want is to be able to click on an exe or of that sort and open the applet on my desktop, and have a slider bar or color selector off to the side of the window that would allow me to change the background and line colors. Any help would be appreciated, any info would be great too.