mindsnacks/moai-dev — pull request #71 by kstenerud (2014-03-20 21:16:51+00:00)
Title: [FINAL] Added setProperty function to set particle system properties.

From LUA you can do this:

local particles = Particles.new(PARTICLES_FILENAME)
particles.plugin:setProperty("startColor", unpack(color))
particles.plugin:setProperty("finishColor", unpack(color))