Packages make Pulsar do amazing things.
atom-background-pic
Beautiful photos on starting the Atom Editor without editor panes / tabs
syntax-highlighting-scopes-showroom
Highlights syntax scopes to simplify syntax highlighting extensions development
package-manager-commands
Adds commands to enable/disable/reload a package from the command palette.
ue4-snippets
Adds useful snippets for writing Unreal Engine 4 C++ Code. (especially useful on Linux)
dbg-gdb-custom-server
An interactive GDB debugger for Atom. Based on dbg-gdb, but provides more customization.
semicol
Automatically positions semi-colon at the end of the line while typing.
inpowered-dark
A an elegant, dark atom theme based on the inPowered brand colors
capybara-snippets
Package for providing the AtomEditor with Capybara specific snippets
i-said-high-contrast-dammit-syntax
A really high contrast, dark syntax theme for Atom