There is a related issue with `Gruntfile.coffee` where `less` task compiles all files (`*.less` glob). In this PR, `main.less` imports `widgets.less`, so `widgets.less` will be compiled twice. This may not be a big deal now, but when include more and more style sheets then we will get much longer compilation times (unless `less` task employs caching, which I doubt) and many unnecessary compilation products. I think we will just have to import all files in `main.less` and change the glob in `less` task to `main.less`. At least we won't need to include all files everywhere as we do with `continuum.css`, which is mentioned seven times. This also raises question about debugging style sheets, but I think that source maps are the answer (but this has to be verified).