It’s not that hard to prototype. Go for it.
@Mark_Kriegsman I’ve heard of temporal dithering but it sounds messy: pulse width modulating a pulse width modulated signal from a chip who’s original purpose was to rid you of having to pulse width modulate. Yuk. And way way beyond my abilities.
@Paul_Russo : in case you missed it, we added temporal dithering as an automatic built-in function in FastLED v2.1 
https://plus.google.com/112916219338292742137/posts/WFXdi5cmJuT Basically, you code your animations at full brightness, and then just turn down the master brightness control with FastLED.setBrightness( …), and FastLED does the rest automagically… It looks like this: https://plus.google.com/112916219338292742137/posts/aXvAACnXfWL