Initial fork commit
.gitignore
Remove tab images in favour of solid colours
Fix tab close icon on hover
Use retina assets for tab close icon
Use tab-height variable
Increase tab height to 50px
Fix broken icons in tree view
Fix selected tree-view item style
Use default font in tree view
Make cursor thicker
Tweak editor gutter styles
Change editor background and wrap guide colours
Style overlays
Style status-bar
Style scrollbars
Style tooltips