Comment 7 for bug 1189925

@timp thanks. Most apps (probably almost all) would be the default gradient (the one you listed). However Michal felt we'd be better off using a 2 color gradient with 2 stops (top and bottom) in the weather app. So it's kind of a one off case. So the weather app can have a custom gradient by defining its' own theme?

@Martin @michal - 4c steps should be ok. I was thinking, could we push up the array about 10 steps, so that the reds and oranges are more reserved for 20+ and upwards? Looking at it, temperatures from 25c to 15c all seem very red/orange, would be good to start seeing the "colder" hues (yellow and green) a bit earlier, around the 10-15c mark?