I'm a dev. From a user perspective I can understand the question - PS2 240p (and especially, PS2 interlace 480i) is about the latest greatest RGB output for 15kHz CRT there is.
It should be possible to capture a test picture and output the exact same signal? Such things are not up to license.txt, open source etc. Just as an idea :)
It would be useful to test CRTs as well as lesser displays, twice-Hz backlight strobe flatscreens, capture cards, etc!