might be a way to use lightweight components to make it easier to embed
PApplet in applications. perhaps a PApplet that's specifically for use with
Swing, with the caveat that it's slower. also possible to just make
createGraphics() more usable on its own without a PApplet.

note that opengl support will need to happen through the lightweight opengl
component, which may be trickier (most likely a hint() when the opengl
renderer is used).