:bug: Make scrollbar corner opaque
:bug: Make scrollbar corner opaque

Issue https://github.com/atom/one-light-ui/issues/4#issuecomment-73806609

+ Fix vertical active state

torx-io/torx-dark-ui,torx-io/torx-dark-ui,torx-io/torx-dark-ui,Zeioth/atom-visual-studio-code-ui,torx-io/torx-dark-ui,torx-io/torx-dark-ui,torx-io/torx-dark-ui,torx-io/torx-dark-ui