maple classic™ 
did you know: i have a "demoscreen" set up on my desk and you can use Processing to control it
link is in a followers-only reply to this toot, or ask me (for trust reasons)
oohhhhh now there's and idea i didn't think of, instead of only pulling screenshots from the demoscreen (which lags it a lot) i could also have processing.js render the same sketch to you locally so you have a better idea of what it looks like in motion...
i'll probably implement that some day but not today