Right lads and ladies. Been looking into this, and it's bad for you using blue in the evening. Amber/yellow and soft reds are the way to go.
With us having so many business owners on our forums I always try keep all mass emails and things to mornings etc.
Nighttime browsing with the black / grey theme may be useless. Not bad for the eyes but still keep you awake longer because you can't have your phone as dim as you need it to be.
So I'm going to knock up an amber version of this frozen theme. Can call it sandy. Lol
And while it may appear to have whites in it, they will be subtle tones of yellow (so in RGB colouring it'll have no blues registering any pixels) and that is basically what you phones do already with their nighttime screens.
Mine matches the sunrise and fall. I even use a SAD lamp in the long winter days with working from home. Else I can't get sleep easy.
Sooooo.
Be aware that as calm as the blue is on your eyes, it's not the best theme for the evenings.