frontend/qml: Central styling/themeing

[quarnster]

Right now there are a lot of individual color, font and other style tweaks spread out all over the place. We should think about how to move all of these tweaks into a single location and figure out how to have the properties come from the Sublime theme file

[sonph]

Looking at the Soda Dark.sublime-theme I think what we can do is to read the configuration file in main.go then export the values to the QML frontend as a JSON object or a Go map?

However there's a lot of attributes/options so probably this feature will need a significant amount of work. Should we delay this to the next release?

[quarnster]

I'm ok with hardcoding for Soda Dark for now. We should start thinking about ways to solve this, but any work done here should not regress the visuals as they are now to something worse.

So if someone wants to look at this now, go ahead, just don't make things ugly in the process of doing so and don't be mad if people hardcode visuals for Soda Dark until this issue is solved 100% ;)

[erbridge]

Migrated to limetext/lime-qml#9.