I think I've figured out what the 'Sunshine' is.
You remember these twitter posts:
I used to think at first they were just a joke, but they've actually got meanings to them:
In the Shit [The misery of everythiiiing! T.T]
Shit Hits the Fan [Wind Turbine and everything else]
Shit Gets Worse [Reggie, Alvin, Carlos dead. Poor Kenny and the starved puppy.]
The the next one we'll be having for Episode 4 is: Sunshine and Rainbows.
I think the rainbows might just be Clementine's coat, because she has the little rainbow thing on there, but I've recently realized what the sunshine is after looking at the preview for Episode 4 again recently...
Sunshine is on the sign.
So what do you think it could mean? I'm starting to worry Sunshine and Rainbows might be something about a clash between people instead of things getting better for the group. T.T