Dark and Light schemes

[RobLoach]

@landroni Do we even need both light and dark schemes anymore? I see some editors just use one scheme rather than having two different types.

[landroni]

Since we have both already, I say we keep them. I think not all use only dark schemes, and not all use only light schemes either. Keeping both gives users the freedom of choice.

This said, after the recent raft of tweaks the dark themes look very nice and useable. But I'm not so sure about the light schemes. Perhaps we should check how other editors implemented the light schemes..

[RobLoach]

Looking at http://chriskempson.github.io/base16/ it looks like the only desired difference is the background. base00 for dark, base07 for light.

[landroni]

Yup, seem so indeed. I guess we should stick to this.

Currently the differences between dark and light themes are mostly minor, and almost entirely related to https://github.com/chriskempson/base16-builder/pull/149 and https://github.com/chriskempson/base16-builder/pull/206.

I'll take a look at syncing the 2 schemes, and see if the light one gets broken...