Robert Hodgin is a graphics programmer and artist, known as flight404, who makes generative art and visual simulations, and co-authored Cinder.
HN commenters link his demos, such as the cymatic ferrofluid and Cinder-based space simulator, and note his work on the iTunes Magnetosphere visualizer.
Art and code are definitely compatible, and there is certainly a market for digitally curated / created art.
If you want to create art, spend time exploring and educating yourself. Learn what you like, what you find interesting and what you feel is worth exploring.
There are quite a few people who seem to be making money in these fields, via commissioned works - one that spring to mind is Robert Hodgin [1]/[2].
There are also galleries which specialise in 'digital art'. I know of one in particular in Berlin [3].
There are blogs which cover digital and emerging forms of art. [4] [5]
I've only just scratched the surface .. there's a LOT that's definitely worth exploring.
[1] http://www.flight404.com/
[2] http://roberthodgin.com/
[3] http://dam-berlin.de/
[4] http://www.vvork.com/
[5] http://we-make-money-not-art.com/
I don't know why you would want to use javascript... have a look at this cinder space simulator, it supports oculus and should be easy to convert the cinder app to a screensaver - not to sure about a moving desktop background. http://roberthodgin.com/oculus-rift-gravity/
Just for some context here, Robert Hodgin is a graphics programmer/artist who does really cool work under the name fight404. You've seen his work as magnetosphere which is now the default iTunes visualizer.
http://roberthodgin.com/magnetosphere-itunes-visualizer/
Amazing demo form one of Cinder's co-authors: http://roberthodgin.com/cymatic-ferrofluid/
He says that he started with Processing, so I'm guessing that at some point he felt limited by the performance he could get out of it.