Packages make Pulsar do amazing things.
vacum
Vacum auto saves and closes the inactive tabs and lets you focus on the active tab
railscast-theme-markup
Atom syntax theme based on ericfreese's conversion of Ryan Bates (@rbates) RailsCasts TextMate theme. This fork adds support for language-markdown.
language-clio-html
This package provides Clio syntax highlighting (in html files) for Atom editor